SOLUTION: factor the expression: 16r^2+8r-35

Question 664268: factor the expression: 16r^2+8r-35
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
16r^2 + 8r - 35 = 0
(4r+7)(4r-5) mixed signs due to + 8 and - 35
Multiples of 35 that will combine with multiple of 4 to add to 8.
Check with FOIL
16r^2 - 20r + 28r - 35
16r^2 + 8r - 35 : confirmed
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