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For y = 3x - 2x^2 + 5x^3, show how to find the value for y when x = 3. show your work.
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For y = 3x - 2x^2 + 5x^3, show how to find the value for y when x = 3. show your work.

For y = 3x - 2x^2 + 5x^3, show how to find the value for y when x = 3. show your work-example-1
User Veliko
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When x = 3 just substitute in equation and solve

y = 3(3)- 2x^2 + 5x^3

Y= 9-2(3)^2+5(3)^3

Y = 9-18+135

Y= 126

User Steph Thirion
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