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If f(x) = -7x^7 + 3x^3 + x - 5, and g(x) is a polynomial such that the degree of f(x) + g(x) is 5, then what is the degree of g(x)?

 Sep 6, 2021
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g(x) =  7 x + a x5 .........         Degree 7 cancels the degree 7 in f(x)   and the a x5   makes the result of adding them degree 5      

 Sep 6, 2021

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