Question

15x^-135/25x^-225

Answer 1

i know i have to factor the numerator and denominator but i keep getting different way i can do it and i dont know which one to use. how do you know which one to use?

Answer 2

we have
\[ 15x^{-135}/25x^{-225}\]
\[ 15/25 x^{(-135+225)}\]
\[3/5 x^{90}\]

Answer 3

\[3x ^{90}/5\]

Answer 4

oops didn't see the x!

Answer 5

ok i worked it out and got 3/5