Write the coefficient of x^3 in (5 - 3x - 2x^2) (x^2 - 7x)
Answers
Answered by
3
Answer:
here's your answer
Step-by-step explanation:
(-3x-2x+5)x²+7x
=(-5x+5)x²+7x
= -5x³+5x²-35x²+35x
= -5x³-30x²+35x
=> coefficient of x³ is -5
Answered by
3
Answer:
(5 - 3x - 2x²) (x² - 7x)
x²(5 - 3x - 2x²) - 7x(5 - 3x - 2x²)
5x²-3x³-2x⁴-35x-21x²-14x³
-2x⁴-17x³-16x²-35x
x³ = -17
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