Question

Multiply: a^2 + 8^2 + 15/a^2 + 7^a + 12)(3a + 12/a^2 - 25

Answer 1

Your answer is, 3/(a -5)

Simplification:

• (a^2 +8a + 15) / (a^2 + 7a + 12) * (3a +12) / (a^2 - 25) =

• (a+3)(a+5)/(a+3)(a+4) * 3(a+4)/(a+5)(a-5) =

• 3/(a -5)

Thus, 3/(a-5) is your answer.