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Chapter 7: Q. 407 (page 899)

Factor Trinomials with a GCF Using the 鈥渁c鈥� Method In the following exercises, factor.

60y2-85y-25

Short Answer

Expert verified

On factorization we get(3y-5)(20y+5)

Step by step solution

01

Step 1. Given information

An expression is given as60y2-85y-25

02

Step 2. Factorization

First convert it into standard form,

ax2+bx+c

Now factorize by using ac method as,

60y2-85y-25=60y2-(100-15)y-25=60y2-100y+15y-25=20y(3y-5)+5(3y-5)=(3y-5)(20y+5)

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Most popular questions from this chapter

Factor:24y3-12y2-20y

Find the Greatest Common Factor from a polynomial

24x-42.

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 by grouping

5x鈭�5y鈭�y+x

Solve:

2u(5u-1)=0
See all solutions

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