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Determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. Synthetic division can be used to find the quotient of \(10 x^{3}-6 x^{2}+4 x-1\) and \(x-\frac{1}{2}.\)

Short Answer

Expert verified
Yes, the statement is true. Synthetic division can be used to divide the given polynomial \(10x^{3}-6x^{2}+4x-1\) by the linear divisor \(x-1/2\) to find the quotient.

Step by step solution

01

Confirm the Form of the Divisor

Firstly, check if the divisor \(x-1/2\) is of the form \(x-a\). In this case, it is clear that it has the correct form as \(a = 1/2\).
02

Perform Synthetic Division

Place the coefficients of the polynomial \(10x^{3}-6x^{2}+4x-1\) in the top row and 'a' in the left-hand corner of the synthetic division table. Carry out the synthetic division operation by performing the required steps of multiplying, then adding down the column until a result is obtained in the bottom row (representing the quotient).
03

Identify the Correct Quotient

Read off the coefficients from the last row of the table and write them as the terms of the quotient polynomial.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Polynomial Long Division
Dividing one polynomial by another may sound daunting at first, but it is a process akin to the familiar long division method used with numbers. When you're dealing with polynomials, polynomial long division is the go-to technique, allowing one to determine the quotient and remainder of the division.
  • First, write down the dividend and divisor in a similar manner to a long division setup with numbers.
  • Then, find how many times the leading term of the divisor can fit into the leading term of the dividend. This gives you the first term of the quotient.
  • Subtract this new polynomial from the dividend, and repeat the process with your new, smaller polynomial.
  • Continue until you are left with a polynomial smaller in degree than the divisor, and this is your remainder.
Simplifying complex polynomial expressions becomes feasible, making polynomial long division an invaluable tool in precalculus and advanced algebra.
Quotient of Polynomials
A quotient of polynomials refers to the result of dividing one polynomial by another. Precalculus students get acquainted with this concept to simplify algebraic expressions or to find functions' zeros. When divided, the polynomials can give an exact quotient or a quotient with a remainder.

For example, when dividing the polynomial equation \(10x^3 - 6x^2 + 4x - 1\) by \(x - \frac{1}{2}\), the solution will yield a polynomial quotient. This is the part of the division that multiplies by the divisor to get the dividend, the way a division of integers may yield a whole number. The efficiency of computing such operations is greatly enhanced with methods like synthetic division, which allows for a quicker and simplified process.
Precalculus
Precalculus lays the groundwork for calculus, and it's a pivotal moment in a student's mathematical journey. It incorporates the study of functions, complex numbers, and an in-depth look at algebraic expressions, among other topics.

In precalculus, synthetic division is a tool for simplifying the division of polynomials, and it's a foundational technique. It helps students understand the behavior of polynomial functions, as division is often used in the context of graph analysis, finding asymptotes, and solving polynomial equations. Having a firm grasp of these topics provides the necessary skills for tackling calculus problems related to rates of change and areas under curves.
Algebraic Expressions
Algebraic expressions are combinations of numbers, variables, and arithmetic operations. They are the fundamental building blocks of higher-level mathematics, including precalculus. In dealing with algebraic expressions, the operations include addition, subtraction, multiplication, division, and exponentiation.

Students learn various methods to simplify these expressions, especially when they involve higher-degree polynomials. Techniques like synthetic division demonstrate how algebraic expressions can be broken down and understood in simpler terms. By mastering the division of polynomials, students gain proficiency in manipulating and understanding algebraic expressions on a deeper level, preparing them for future mathematical challenges.

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Most popular questions from this chapter

Write the equation of each parabola in standard form. Vertex: \((-3,-1) ;\) The graph passes through the point \((-2,-3)\)

a. Use a graphing utility to graph \(y=2 x^{2}-82 x+720\) in a standard viewing rectangle. What do you observe? b. Find the coordinates of the vertex for the given quadratic function. c. The answer to part (b) is \((20.5,-120.5) .\) Because the leading coefficient, \(2,\) of the given function is positive, the vertex is a minimum point on the graph. Use this fact to help find a viewing rectangle that will give a relatively complete picture of the parabola. With an axis of symmetry at \(x=20.5,\) the setting for \(x\) should extend past this, so try \(\mathrm{Xmin}=0\) and \(\mathrm{Xmax}=30 .\) The setting for \(y\) should include (and probably go below) the \(y\) -coordinate of the graph's minimum \(y\) -value, so try \(\mathrm{Ymin}=-130\) Experiment with Ymax until your utility shows the parabola's major features. d. In general, explain how knowing the coordinates of a parabola's vertex can help determine a reasonable viewing rectangle on a graphing utility for obtaining a complete picture of the parabola.

Write the equation of each parabola in standard form. Each group member should consult an almanac, newspaper, magazine, or the Internet to find data that initially increase and then decrease, or vice versa, and therefore can be modeled by a quadratic function. Group members should select the two sets of data that are most interesting and relevant. For each data set selected, a. Use the quadratic regression feature of a graphing utility to find the quadratic function that best fits the data. b. Use the equation of the quadratic function to make a prediction from the data. What circumstances might affect the accuracy of your prediction? c. Use the equation of the quadratic function to write and solve a problem involving maximizing or minimizing the function.

Write the equation of each parabola in standard form. Find the point on the line whose equation is \(2 x+y-2=0\) that is closest to the origin. Hint: Minimize the distance function by minimizing the expression under the square root.

Describe in words the variation shown by the given equation. \(z=\frac{k \sqrt{x}}{y^{2}}\)

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