Multiplication
(-2x^2)(3x^5)
-6x^7
(4x^6) / (6x^8)
3x(5x^2 - 9)
15x^3 - 27x
(x/2) - (x/4) = (x/8)+1
x=8
(-3x^2)^3(x^2)
27x^8
(-8x^10y^6) / (12 x^12 y^3)
(-2x^2)(3x^2 - 4x + 5)
(x/3) - (x/6) = (x/4)+1
x=-12
(-2x^2y^3)^2(3x^3y)
4x^7y^7
( (4x^2y^3)^2 ) / (32x^4 y^9)
1 / (2y^3)
12x - 4y^2
(x+6)/4 + 2 = (x+2)/2
x=10