Question

simplify 3 X square + 2 x minus 6​

Answer 1

see the above attachment...

$3 {x}^{2} + 2x - 6$

${b}^{2} - 4 ac = {2}^{2} - 4 \times 3 \times ( - 6)$

$= 76$

$x = - b + - \sqrt{ {b}^{2} - 4ac}$

$x = \frac{ - 2 + - \sqrt{76} }{2 \times 3}$

$x = \frac{ - 2 + - \sqrt{1 \times 4} }{6}$

$x = \frac{ - 2 + 2 \sqrt{19} }{6} \: or \: x = \frac{ - 2 - 2 \sqrt{19} }{6}$