SOLUTION: Factor each of the following. 1) 4x2+7x-2 2) 16y2=25

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Question 6102: Factor each of the following.
1) 4x2+7x-2
2) 16y2=25
Answer by guapa(62) About Me  (Show Source):
You can put this solution on YOUR website!
1)
4x%5E2%2B7x-2
Find the two middle terms whose sum is 7x and whose product is -8.
4x%2B8x-x-2
Factor by using factoring by grouping.
4x%28x%2B2%29-%28x%2B2%29
Factor common term
%28x%2B2%29%284x-1%29
2)
16y%5E2=25
Substract 25 from both sides
16y%5E2-25=0
This is the difference of a square
%284y-5%29%5E2=0
Solve for y
4y-5=0, y=5/4
Hope it helps