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Lorico [155]
2 years ago
6

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

Mathematics
1 answer:
EleoNora [17]2 years ago
7 0

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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