3*x - x^3 + 6.6 = 0
9*x^2-x-15=0
$-7f^{2}$ +11f+9=4-3f
5th root of -32 raise to the power of -4
0.4(2-q)=0.2(q+7)
5+2(5x+ $2x^{2}$ )=13
-3(-a+6)+x(z+4)-2x
9*4 rectangle cut into 2 parts that can be put together to make a square
2-2=
2x(6-5x)=-7