A = 5x + 2x + 10x
A = x (5 + 2 + 10)
A = 17x
B = 27x^2 - 27x + 27
B = 27(x^2 - x + 1)
C = 9x(x - 3) + 9x(10 + 2x)
C = 9x(x - 3 + 10 + 2x)
C = 9x(3x + 7)
D = (2x + 1)(8 + x) - (3x - 1)(2x + 1)
D = (2x + 1)(8 + x - 3x + 1)
D = (2x + 1)(-2x + 9)
E = 10x^2 - 5x + 15
E = 5(2x^2 - x + 3)
F = 4x^2 + 7x
F = x(4x + 7)
G = 9x^2(x + 1) + 6x(5 + x)
G = 3x[3x(x + 1) + 2(5 + x)]
H = (11x - 3)^2 + (11x - 3)(5 + 9x)
H = (11x - 3)(11x - 3 + 5 + 9x)
H = (11x - 3)(20x + 2)
H = (11x - 3)[2(10x + 1)]
H = 2(11x - 3)(10x + 1)
