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Quadratic Equations $x^2+bx+c=0$

Review of Factorizing

Expand $x\left(x-4\right)=$
$\quad$ Factorize $x^2-4x=$ $\bigl(x-$ $\bigl)$
Expand $3x\left(x+7\right)=$
$\quad$ Factorize $3x^2+21x=$ $\bigl(x+$ $\bigl)$
Expand $\left(x+1\right)\left(x+2\right)=x^2+$ $x+$
$\quad$ Factorize $x^2+3x+2=\bigl(x+$ $\bigl)\bigl(x+$ $\bigl)$
Expand $\left(x-5\right)\left(x+3\right)=x^2-$ $x-$
$\quad$ Factorize $x^2-2x-15=\bigl(x-$ $\bigl)\bigl(x+$ $\bigl)$
Expand $\left(x-4\right)\left(x-8\right)=x^2-$ $x+$
$\quad$ Factorize $x^2-12x+32=\bigl(x-$ $\bigl)\bigl(x-$ $\bigl)$
Expand $\left(x-3\right)\left(x+3\right)=x^2-$
$\quad$ Factorize $x^2-9=\bigl(x+$ $\bigl)\bigl(x-$ $\bigl)$
Expand $\left(x-6\right)^2=x^2-$ $x+$
$\quad$ Factorize $x^2-12x+36=\bigl(x-$ $\bigl)$
Expand $6\left(x+4\right)\left(x-1\right)=$
$\quad$ Factorize $6x^2+18x-24=$ $\bigl(x+$ $\bigl)\bigl(x-$ $\bigl)$
Expand $5\left(x-5\right)\left(x+5\right)=$
$\quad$ Factorize $5x^2-125=$ $\bigl(x-$ $\bigl)\bigl(x+$ $\bigl)$
Expand $3\left(x-4\right)^2=$
$\quad$ Factorize $3x^2-48=$ $\bigl(x+$ $\bigl)\bigl(x-$ $\bigl)$
Fully factorize:
$8x^2-48x$
$x^2+10x+24$

$x^2-9$
$x^2-36$

$x^2+11x+18$
$x^2+2x-63$

$x^2-8x$
$x^2+8x-9$

$x^2-4$
$x^2+6x+8$

$x^2-7x-18$
$7x^2+42x$

$-3x^2-12x$
$x^2-x-72$

$x^2+8x$
$x^2-6x-7$

$x^2-3x-4$
$6x^2+48x$

$x^2-49$
$x^2+13x+40$

$x^2+2x-48$
$x^2+6x-7$
Solve for $x$. If there are multiple answers, separate them with commas.
$-2x^2-8x+42=0 \qquad x=$
$2x^2-4x-48=0 \qquad x=$

$7x^2-63x+56=0 \qquad x=$
$x^2-5x+4=0 \qquad x=$

$3x^2-3x-90=0 \qquad x=$
$7x^2+14x=0 \qquad x=$

$8x^2-128=0 \qquad x=$
$x^2-2x-63=0 \qquad x=$

$x^2+17x+72=0 \qquad x=$
$-2x^2-16x-24=0 \qquad x=$

$x^2+7x-18=0 \qquad x=$
$x^2-36=0 \qquad x=$

$-x^2-2x+48=0 \qquad x=$
$x^2+2x=0\qquad x=$

$9x^2+18x+9=0 \qquad x=$
$-3x^2+36x-96=0 \qquad x=$

$-5x^2+80=0 \qquad x=$