supersports101
supersports101
20-06-2017
Mathematics
contestada
Solve x^2 – 12x + 36 = 90 for x
Respuesta :
mathmate
mathmate
25-06-2017
x^2-12x+36=90
x^2-12x-64=0
factor: (x-16)(x+4)=0
by the zero product theorem,
x-16=0 or x+4=0
=>
x=16 or x=-4
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