17-06-2019
Mathematics

contestada

Which is a solution to the equation?
(х-2)(х + 5) = 18?

Respuesta :

jdoe0001 jdoe0001

17-06-2019

[tex]\bf (x-2)(x+5)=18\implies \stackrel{\mathbb{F~O~I~L}}{x^2+3x-10}=18\implies x^2+3x-28=0 \\\\\\ (x-4)(x+7)=0\implies x= \begin{cases} 4\\ -7 \end{cases}[/tex]

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