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02-06-2019
Mathematics

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For questions 2 and 3, simplify each polynomial.
3x2 + 6 - 2x + 5x - 4x2 +9

A. -x^2 + 3x + 15
B. 7x^2 + 3x + 3
C. x^2-3x+15
D. -x^2 + 7x + 15

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MathPhys MathPhys

02-06-2019

Answer:

A

Step-by-step explanation:

3x² + 6 - 2x + 5x - 4x² + 9

Combine like terms:

3x² - 4x² - 2x + 5x + 6 + 9

-x² + 3x + 15

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