alyriah alyriah

13-10-2021
Mathematics

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Simplify the following expression by combining like terms.
3x + 4x² - 7x+ 9x2

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jimrgrant1 jimrgrant1

13-10-2021

Answer:

13x² - 4x

Step-by-step explanation:

3x + 4x² - 7x + 9x² ← collect like terms

= (4x² + 9x² ) + (3x - 7x)

= 13x² + (- 4x)

= 13x² - 4x

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