Question

3(x-1)=(x-2)^2
AYUDAAAA​

Answer 1

Respuesta:

3(x-1) = (x-2)^2

3x-3 = (x-2)^2

3x-3 = x^2-4x+4

3x-3-4 = x^2-4x+4-4

3x-7 = x^2-4x

3x-7+4x = x^2-4x+4x

7x-7 = x^2

7x-7 -x^2 = x^2-x^2

7x-7-x^2 = 0

-(7-7x-x^2) = 0

-7+7x+x^2 = 0

x^2+7x-7 = 0

x = -(7)+-√((7)^2-4(1)(-7))/2×1

x = -7+-√(49+28)/2

X1 = (-7+√77)/2

X2 = (7+√77)/2

Explicación paso a paso: