cassandra1007 cassandra1007

15-02-2015
Mathematics

contestada

what adds up to 11 and multiplies to -80

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brozang brozang

15-02-2015

let your number be x

your equation will be (x+11)x = -80
expand the equation x^2 +11x +80 = 0
solve the equation and find x

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xxsxkim xxsxkim

15-02-2015

its +16 and -5.
+16+-5= 11
+16*-5=-80

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