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Simplify the polynomial, then evaluate for x=3 x^2+2x-3-2x^2+x+4

User Space
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1 Answer

1 vote

Answer:

The answer is

19

Explanation:

x² + 2x - 3 - 2x² + x + 4

Group like terms

That's

x² - 2x² + 2x + x - 3 + 4

Simplify

- x² + 3x + 1

when x = 3

We have

(-3)² + 3(3) + 1

9 + 9 + 1

18 + 1

19

Hope this helps you

User Teqnology
by
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