factoring the sums and differences of cubes
128x^3+54 = 2(64x^3 + 27)
= 2((4x)^3 + 3^3)
= 2(4x+3)(16x^2 - 12x + 9)
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?