Question

find the product
(1) -7x^2 ×(2+5x-4y)
(2) (1+5x -x^2) × x^3

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Answer 1

Answer:

(1) -7x^2 ×(2+5x-4y)

= -14x^2-35x^3+28x^2 y

(2) (1+5x-x^2) × x^3

= x^3+5x^4 -x^5

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