Question

como que se faz essa conta? (11x²-2-x+10x³):(5x-2)=

Answer 1

Oii

$\frac{(11 x^{2} -2-x+10 x^{3} )}{(5x-2)} divisao polimonial$

$\frac{(10 x^{2} +x-2)(x+1 )}{(5x-2)}$

$\frac{(10 x^{2} +5x-4x-2)(x+1 )}{(5x-2)} = \frac{(5x(2 x +1)-2(2x+1 ))(x+1)}{5x-2}$

$\frac{(2x+1)(5x-2)(x+1)}{5x-2} corta o termo igual$

$\boxed{(2x+1)(x+1)}$

$2 x^{2} +2x+x+1$

$2 x^{2} +3x+1 equacao de segundo grau 2 x^{2} +3x+1 = 0$

Δ=b² - 4ac
Δ=3² - 4.2.1
Δ=9 - 8
Δ=1

x = -b + - √Δ /2.a
x = -4 + - √1 /2.2
x = -4 + - 1 /4

x¹= -4 + 1 = -3/4

x²= -4 - 1 = -5/4