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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:
$-5x^2+20x$
$x^2-12x+32$

$5x^2+35x$
$x^2-9x+20$

$x^2-4x-12$
$x^2+8x+12$

$x^2+x-12$
$x^2-6x-27$

$x^2-3x$
$x^2+x-2$

$x^2-12x+35$
$9x^2-81x$

$x^2-12x+27$
$x^2+14x+45$

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

$x^2-64$
$x^2+10x+9$

$x^2-4x-32$
$x^2+12x+35$

$-5x^2+35x$
$x^2+4x-12$

Solving by Factorizing

Fully factorize. $\qquad x^2-3x+2=$

Solve for $x$.$\qquad x^2-3x+2=0\qquad \qquad x=$

Fully factorize. $\qquad x^2-49=$

Solve for $x$.$\qquad x^2-49=0\qquad \qquad x=$

Fully factorize. $\qquad x^2-8x+16=$

Solve for $x$.$\qquad x^2-8x+16=0\qquad \qquad x=$

Fully factorize. $\qquad x^2+8x=$

Solve for $x$.$\qquad x^2+8x=0\qquad \qquad x=$

Fully factorize. $\qquad 3x^2-3x-60=$

Solve for $x$.$\qquad 3x^2-3x-60=0\qquad \qquad x=$

Fully factorize. $\qquad -2x^2-24x-72=$

Solve for $x$.$\qquad -2x^2-24x-72=0\qquad \qquad x=$

Solve for $x$. If there are multiple answers, separate them with commas.

$x^2-3x=-2\qquad \qquad x=$

$x^2=49\qquad \qquad x=$

$x^2+16=8x\qquad \qquad x=$

$8x=-x^2\qquad \qquad x=$

$3\left(x^2-20\right)=3x\qquad \qquad x=$

$-72=2x\left(x+12\right)\qquad \qquad x=$