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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

Simplify the polynomial Then find its value for the given value of the variable 3x3 x3 5x39x3 if x 1 The simplified form of the expression is If x 1 the value o class=

Respuesta :

Esther

Answer:

Step-by-step explanation:

Simplified expression:

[tex]3x^3 -x^3 +5x^3-9x^3[/tex]

[tex]2x^3 +5x^3-9x^3[/tex]

[tex]7x^3 -9x^3[/tex]

[tex]-2x^3[/tex]

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

[tex]-2x^3[/tex]

[tex]-2(-1^3)[/tex]

[tex]-2(-1)[/tex]

[tex]2[/tex]

Hope this helps!

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