1.Find the coefficient of x2 in the product ( 2 – x) (5 – 3x) (1 – 7x). 2.Subtract 3y2 – 8y + 7 from 9y2 + 5y +6
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Answer:
We have
(i) 3x + 7x = (3 + 7)x = 10x
(ii) -5xy + 9xy = ( -5 + 9)xy = 4xy
Step-by-step explanation:
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