Question

i really dont get this...

Answer 1

Answer:

J. 1 / x² - x

Step-by-step explanation:

>> ( x + 1 ) / ( x³ - x )

>> ( x + 1 ) / x ( x² - 1 ) ------------ Taking 'x' common

>> ( x + 1 ) / x ( x² - 1² ) ---------- Using identity ( a² - b² ) = ( a + b ) ( a - b )

>> ( x + 1 ) / x ( x + 1 ) ( x - 1 )

>> 1 / x ( x - 1 ) --------------------- Cancelling ( x + 1 )

>> 1 / x² - x ------------------------- This is your answer

Hope it helped...