Question

(x-1) ² - 2(3x-2) < x(x+4)​

Answer 1

Resposta:

S = {x E IR | x > 5/12}

Explicação:

${(x-1)}^{2} - 2(3x-2) < x(x + 4) \\ {x}^{2} - 2x + 1 - 6x + 4 < {x}^{2} + 4x \\ - 2x - 6x - 4x < - 1 - 4 \\ - 12x < - 5 \\ 12x > 5 \\ x > \frac{5}{12}$

Answer 2

Resposta:

(x-1)²-2(3x-2)<x(x+4)

x²-2x+1-6x+4<x²+4x

-2x+1-6x+4<4x

-2x-6x-4x<-4-1

-12x<-5

x>5/12