Question

2x²-20x-22=0

3x²-14x+16=0

x²+2x=0

fórmula porfa de los tres...​

Answer 1

Respuesta:

Explicación paso a paso:

2x² - 20 x - 22 = 0

$x^{2} -10x-11=0\\x^{2} +x-11x-11=0\\x*(x+1)-11(x+1)=0\\(x+1)*(x+11)=0\\x_{1}=-1 / x_{2}= 11$

3x² -14x + 16 = 0

$3x^{2} -6x-8x+16=0\\3x*(x-2)-8(x-2)=0\\(x-2)*(3x-8)=0\\x_{1}=2 / x_{2}=\frac{8}{3}$

x² + 2x = 0

$x*(x+2)=0\\x_{1}=-2 / x_{2}=0$