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(1K) Factorising $x^2+bx+c$

Review of Factorizing

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 $\left(x+7\right)\left(x-2\right)=$
$\quad$ Factorize $x^2+5x-14=$
Expand $\left(x-9\right)\left(x-8\right)=$
$\quad$ Factorize $x^2-17x+72=$

Fully factorize:
$x^2+14x+48$
$x^2-11x+30$

$x^2+x-72$
$x^2-16$

Fully factorize:
$x^2-2x-8$
$x^2+4x-21$

$x^2-5x-36$
$x^2+x-72$

$x^2+9x+20$
$x^2+7x-8$

$x^2-6x-27$
$x^2+5x+4$

$x^2+15x+56$
$x^2-9x+14$

$x^2+x-2$
$x^2-4x-21$

$x^2+3x+2$
$x^2-6x+9$

$x^2-18x+81$
$x^2-6x+8$