Question

Simplify the polynomial. Then find its value for the given value of the variable.

3x^3 – x^3 +5x^3-9x^-3?

if x= -1

The simplified form of the expression is :_______
If x = -1, the value of the expression is:_______

plssss help, fill in the blanks

Answer 1

Explanation:

Simplified expression:

`3x^3 -x^3 +5x^3-9x^3`

`2x^3 +5x^3-9x^3`

`7x^3 -9x^3`

`-2x^3`

If x = -1, the value of the expression is:

`-2x^3`

`-2(-1^3)`

`-2(-1)`

`2`

Hope this helps!