Question

x^2 = -3/4x Cum scot x-ul de aici? M-am blocat....


X^2-4x+3=0 este ecuatia completa!

Answer 1

${x}^{2} - 4x + 3 = 0$

$a = 1$

$b = - 4$

$c = 3$

$delta = {b}^{2} - 4ac$

$delta = {( - 4)}^{2} - 4 \times 1 \times 3$

$delta = 16 - 12$

$delta = 4$

$x(1,2) = \frac{ - b + - \sqrt{delta} }{2a}$

$x(1,2) = \frac{ - ( - 4) + - \sqrt{4} }{2 \times 1}$

$x(1,2) = \frac{4 + - 2}{2}$

$x(1) = \frac{4 + 2}{2}$

$x(1) = \frac{6}{2}$

$x(1) = 3$

$x(2) = \frac{4 - 2}{2}$

$x(2) = \frac{2}{2}$

$x(2) = 1$