Question

Hallar x en: x+36/x=12

Answer 1

$x^{2} +36=12x\\x^{2} -12x+36=0\\(x-6)(x-6)=0\\como los factores son iguales\\x=6$

Answer 2

X+36/x=12

X^2+36=12x

X^2-12x+36=0

(x-6)(x-6)=0

Igualando cada uno a cero,

X=6