Mathematics, 12.03.2021 20:50 hiji0206

What is the coefficient of x in the expansion of (2x−4)^2? What is the coefficient of x^2 in the expansion of (x+3)(x^2+7x+8)?

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What is the coefficient of x in the expansion of (2x−4)^2? What is the coefficient of x^2 in the ex...