Evaluate 2x^3 for x= -5

Evaluate each expression for the given value of the variables.

2x^3 for x= -5

5y^4 for y= -3

x^2 - 3x + 2 for x= 4

-5x^3y^2 for x= -2 and y= -1
in Algebra 1 Answers by Level 1 User (280 points)

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2 Answers

2x^3 at x=-5...

(-5)^3==125

2*(-125)=-250
by

2x^3 for x= -5 

2(-5)^3=2(-125)=-250

5y^4 for y= -3
5(-3)^4=5(81)=405
x^2 - 3x + 2 for x= 4
4^2-3(4)+2=6
-5x^3y^2 for x= -2 and y= -1

-5(-2)^3(-1)^2=-5(-8)(1)=40

by Level 8 User (35.3k points)

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