How do you simplify # (-2x^-5) x^7#?

1 Answer
Jul 1, 2016

Answer:

#= -2x^2#

Explanation:

the above #(-2x^(-5))x^7# can be written like this :

#=-2*x^(-5)*x^7#]

{so here we have two identical variables and they are being multiplied so we will add there exponents like this}

#= 2*x^(-5+7)#

#= -2*x^2#

#= -2x^2#

{remember when same variables with different exponents are multiplies there exponents are added and when they are divided there exponents are subtracted}