davinioza davinioza

17-07-2017
Mathematics

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choixongdong choixongdong

17-07-2017

y = 0 so
x^2 + 6x - 40 = 0
(x +10)(x - 4) = 0
x+10 = 0; x = -10
x - 4 = 0; x = 4
answer is C. x = -10 and x = 4

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