Simplify the expression?help!!! t-4/t^2-16 * t+4/t^2+16?

Question

Simplify the expression?help!!! t-4/t^2-16 * t+4/t^2+16?

Answer 1

t-4/t^3-4t^2+16t-64

or

it might be

t-4/(t-4)(t^2+16)

the first one is the second one with the denominators opened while the first one is the one that has the denominators multiplied

which can be simplified to 1/(t^2+16)

my bad if its wrong

Answer 2

t-4/t^2-16 * t+4/t^2+16

t-4/(t+4)(t-4) * t+4/t^2+16

1/ t^2+16

Answer 3

(t-4)(t+4)/ (t^2-16)(t^2+16)

so you can foil the top

t^2-4t+4t+16/(t^2-16)(t^2+16)

t^2+16/(t^2-16)(t^2+16)

cancel t^2+16 top and bottom

1/(t^2-16)

factor the bottom

1/(t+4)(t-4) and ur good