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Chapter 1: Q. 2 (page 23)

Solve:

x2-4x-12=0

Short Answer

Expert verified

The solution set is-2,6.

Step by step solution

01

Given information:

Consider the equation,

x2-4x-12=0 , which is already in the standard formax2+bx+c=0.

02

Step 2:

The left side of the equation can be factored as,

x+2x-6=0

03

Step 3:

By Zero product property, we have,

x+2=0 or x-6=0

x=-2 x=6

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Most popular questions from this chapter

True or False

In using a graphing utility to solve an

equation, exact solutions are always obtained.

In Problem 17-36, solve each equation algebraically. Verify your solution using a graphing utility.

x3+x2-4x-4=0

Find the distance d(P1,P2)between the points P1andP2.

P1=(a,a);P2=(0,0)

Which form of the equation of a line do you prefer to use? Justify your position with an example that shows that your choice is better than another. Have reasons.

Find the midpoint of the line segment joining the points P1 and P2 .

P1=(2,-3);P2=(10,3)
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