Algebra: solve for a

Algebra
Tutor: None Selected Time limit: 1 Day

Mar 10th, 2015

multiply second fraction on the left by a+8 in both numerator and denominator

(a^2 - a - 8) / (a+8) = 64 /(a+8)

a^2 - a -  72 = 0

(a - 9) (a + 8) = 0

a = 9 or a = -8

Mar 10th, 2015

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