melissapulido198
20.09.2020 •
Mathematics
Which expression is equivalent to the given expression. 3(x-7)+4(x^2-3x+9)
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Ответ:
Step-by-step explanation:
= 3(x-7) + 4(x² - 2x + 9)
= 3x - 21 + 4x² - 8x + 36
= 4x² + 3x - 8x + 36 - 21
= 4x² - 5x + 15
Ответ: