symarukhsar symarukhsar

12-06-2018
Mathematics

contestada

i need help remembering this steps to solve for x^(2)-18=7x

Respuesta :

datguiser datguiser

12-06-2018

you subtract 7x from both sides

x^2-7x-18

Factor into (x+2)(x-9)

Split

x+2=0, x-9=0

x= -2 and 9

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