Question

What is the coefficient of x2 in (x2-1)(x-2) ?

Answer 1

(-1)(×-2)

Step-by-step explanation:

×2=(-1)(×-2)

Answer 2

Answer:

-2

Step-by-step explanation:

(x²-1)(x-2) = x³-2x²-x+2

Hence, -2 is  coefficient of x² in (x²-1)(x-2)

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