## Algebra 1

$(k+2)(k+3)$
$k^2+5k+6=(k+2)(k+\underset\uparrow?)$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \$added to 2, must equal 5 $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \$multiplied by 2, must equal 6 Let x be ?. $x+2=5$ $x+2-2=5-2$ $x=3$ $2x=6$ $2x\div2=6\div2$ $x=3$