Simplify the variable expression:

Question

1. (13)(-x)

My answer: -13x

2. (-4)(-x)^3(x)(-1/8)

My answer: 1/2 • -3x

I'm not sure about number 2. Thanks

Answer 1

If your expresion mean :

( - 4 ) * ( - x ) ^ 3 * x * ( - 1 / 8 )

then :

( - 4 ) * ( - x ) ^ 3 * x * ( - 1 / 8 ) =

- 4 * ( - 1 / 8 ) * ( - x ^ 4 ) =

( 1 / 2 ) * ( - x ^ 4 ) =

- x ^ 4 / 2