Question

(x-5)²+4=x²-7× ayuddaa​

Answer 1

Respuesta:

(X-5)^2+4 = X^2-7X

X^2-10X+25+4 = X^2-7X

X^2-10X+29 = X^2-7X

X^2-10X+29-X^2 = X^2-7X-X^2

-10X+29 = -7X

-10X+7X +29 = -7X+7X

-3X + 29 = 0

-3X+29 = 0-29

-3X = -29

-3X/-1 = -29/-1

3X = 29

3X/3 = 29/3

X = 29/3.

Comprobación :

((29/3)-5)^2+4 = (29/3)^2-7(29/3)

(14/3)^2+4 = (841/9)-203/3

196/9+4 = (841/9)-203/3 ; 4 = 36/9

196/9+36/9 = 841/9-203/3

(196+36)/9 = 841/9-203/3

232/9 = 232/9

R// 29/3 es el valor de x en esa ecuación.

Explicación paso a paso: