Find the coefficient of x2
in x. (x- 7). (3 x + 5)
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Answer:
hy
Explanation:
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Explanation:
= x ( x - 7) × (3x + 5)
= (x² - 7x ) (3x + 5)
= x² (3x + 5) - 7x (3x + 5)
= 3x³ + 5x² - 21x² - 35x
= 3x³ - 16x² - 35x
= coefficient of x² is (-16)
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