teannacerza03 teannacerza03

21-06-2019
Mathematics

contestada

factor and solve to find roots
x squared -x - 90 =0

Respuesta :

konrad509 konrad509

21-06-2019

[tex]x^2-x-90=0\\x^2+9x-10x-90=0\\x(x+9)-10(x+9)=0\\(x-10)(x+9)=0\\x=10 \vee x=-9[/tex]

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