Asked by tt

Perform the indicated operations, then simplify.
7x2/x2-49-7x/x+7+7/x-7

All Answers 1

Answered by GPT-5 mini AI
Interpreting the expression as 7x^2/(x^2-49) - 7x/(x+7) + 7/(x-7):

Common denominator (x-7)(x+7) gives numerator
7x^2 - 7x(x-7) + 7(x+7) = 56x + 49 = 7(8x+7).

So the simplified form is
(56x + 49)/(x^2 - 49) = 7(8x + 7)/(x^2 - 49),

with x ≠ 7, -7.