which is a solution to the equation?
(x-2)(x=5)=18

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07-10-2016
Mathematics

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which is a solution to the equation?
(x-2)(x=5)=18

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apologiabiology apologiabiology · Answer 1 · 2016-10-07T01:54:35+02:00

apologiabiology apologiabiology

07-10-2016

expand
x^2+3x-10=18
minus 18 both sides
x^2+3x-28=0
find what 2 numbers mutiply to -28 and add to 3
7 and -3
(x+7)(x-3)=0
set each to zero

x+7=0
x=-7
x-3=0
x=3

x=-7 and 3

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Аноним Аноним · Answer 2 · 2016-10-07T01:54:49+02:00

Аноним Аноним

07-10-2016

I hope this helps you

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which is a solution to the equation? (x-2)(x=5)=18

Respuesta :

Otras preguntas

which is a solution to the equation?
(x-2)(x=5)=18