## Elementary Algebra

$x = 2, -9$
1) Expand and simplify to solve for $x$ $x(x+9)=2(x+9)$ $x(x+9) - 2(x+9) = 0$ $x^{2} + 9x - 2x -18 = 0$ $x^{2}+7x-18=0\\\\ (x+9)(x-2)=0$ 2) Set each factor equal to zero and solve: $x + 9 = 0$ $x = -9$ $x-2=0 \\\\x=2$