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Chapter 7: Q 52. (page 819)

Factor by grouping.

x2+5x鈭�3x鈭�15

Short Answer

Expert verified

The required answer isx-3x+5.

Step by step solution

01

Step 1. Given information.  

The given expression isx2+5x-3x-15.

02

Step 2.  Simplify the expression. 

x2+5x-3x-15=x2+2x-15=x2-3x+5x-15=xx-3+5x-3

Factor out common term.

x-3x+5

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Most popular questions from this chapter

Pumpkin drop A fall tradition at the University of California San Diego is the Pumpkin Drop, where a pumpkin is dropped from the eleventh story of Tioga Hall.

(a) The binomial -16t2+128 gives the height of the pumpkin t seconds after it is dropped. Factor the greatest common factor from this binomial.

(b) If the pumpkin is thrown down with initial velocity 32 feet per second, its height after t seconds is given by the trinomial -16t2-32t+128.Completely factor this trinomial.

Factor Differences of Squares

In the following exercises, factor.

1-16s2

Factor by grouping

ax鈭�ay+bx鈭�by

Find the Greatest Common Factor of Two or More Expressions.

60,294,630

Find the Greatest Common Factor from a polynomial

35y+84
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