Question

x-3/x+3 - x+3/x-3 =48/7

Answer 1

Step-by-step explanation:

[(x-3)/(x+3)]-[(x+3)/(x-3)]=48/7

(x^2+9-6x-x^2-9-6x)/(x^2-9)=48/7

-12x/x^2-9=48/7

-84x=48(x^2-9)

-7x=4(x^2-9)

-7x=4x^2-36

4x^2+7x-36=0

4x^2+16x-9x-36=0

4x(x+4)-9(x+4)=0

(4x-9)(x+4)=0

4x-9=0

x=9/4

x+4=0

x=-4