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Let f(x) = x^3 + 3x ^2 + 4x - 7 and g(x) = -7x^4 +x^2 - 7 . What is the coefficient of x^3 in the sum f(x) + g(x)?

 Sep 18, 2021
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1 x+   o x3    = 1 x3

 Sep 18, 2021

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