Help me please!! For y = 4x + 2x^2 - x^3, show how to find the value for y, When x = 2 Show your work

asked Dec 2, 2017 151k views

4 votes

by IMash

8.5k points

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4 votes

y = 4x + 2x² - x³

When x=2 . . .

x = 2
x² = 4
x³ = 8

4x + 2x² - x³ = 4(2) + 2(4) - (8)

= 8 + 8 - 8

= 8

y = 8

Keithpjolley answered Dec 8, 2017

7.1k points

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