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What is the sum of all possible values of k for which x^2 + kx - 10x + 36 is the square of a binomial?

 Feb 13, 2022
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(x+6)^2 = x^2 + 12x + 36     means k = 22

(x-6)^2 = x^2 -12x + 36        means k = -2     Add 'em together........

 Feb 13, 2022
edited by ElectricPavlov  Feb 13, 2022

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