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How do you write an equation for 2 integers whose sum is 5 and whose product is -36?
Wiki User
∙ 13y ago
1st = x
2nd = 5 - x
x(5 - x) = -36
5x - x2 = -36
5x - x2 + 36 = -36 + 36
5x - x2 + 36 = 0
-1(- x2 + 5x + 36 = 0)
x2 - 5x - 36 = 0
(x + 4)(x - 9) = 0
(x + 4) = 0 or (x - 9) = 0
x = -4 or x = 9
Thus, the integers are -4 and 9
Wiki User
∙ 13y ago
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