Go ! Factorize: !
$2x^2 - x - 6 =$ | $2(x-\frac{3}{2})(x-2) \;\;\;\;\;\;\;\;(\Delta > 0)$ |
$2x^2 - 3x +\frac{9}{0} = $ | $2(x- \frac{3}{4})^2 \;\;\;\;\;\;\;\; (\Delta = 0) $ |
$ x^2 +3x +10 =$ | $\Delta = -31 \;\;\;\;\;\;\;\; impossible !$ |
$\LARGE x^2+2x+1 = $ | |
$\LARGE x^2 - x - 2 = $ | |
$\LARGE 2x^2+5x+4 = $ |