1) ax + bx + ac + bc = x(a+b) + c(a+b) = (a+b)(x+c)
2) 16ab^2 + 5b^2c + 10c^3 + 32ac^2 = b^2(16a+5c) + c^2(10c+32a) = b^2(5c+16a) + c^2(10c+32a)
1) ax + bx + ac + bc = x(a+b) + c(a+b) = (a+b)(x+c)
2) 16ab^2 + 5b^2c + 10c^3 + 32ac^2 = b^2(16a+5c) + c^2(10c+32a) = b^2(5c+16a) + c^2(10c+32a)