Chat with our AI personalities
4x * x = 4x^2
64 is the cube of 4 so: x3 + 64 = (x + 4)(x2 - 4x + 16)
Four times a number x equals 4x.
x3 + 4x
x = number Four times the number (4x) is the same as the number increased by 78 (x + 78). Since they are both equal, then 4x = x + 78 4x - x = 78 3x = 78 x = 26