x3 - 4x2 + x + 6
The sum of the odd coefficients equals the sum of the even coefficients, so (x + 1) is a factor.
So
x3 - 4x2 + x + 6 = x3 + x2 - 5x2 - 5x + 6x + 6
= x2(x + 1) - 5x(x + 1) + 6(x + 1)
= (x + 1)(x2 - 5x + 6)
= (x + 1)(x - 2)(x - 3)
4 cubed is 64, 3 squared is 9, so 55.
Negative sixty-four minus four squared is equal to -80.
(2x - 1)(2x + 3)
(9x + 8)(9x - 8)
39
There are no rational factors.
There are no factors with rational coefficients.
(x + 2)(x - 2)
x^2 - y^2 - 4 is in its simplest form.
4 cubed is 64, 3 squared is 9, so 55.
Negative sixty-four minus four squared is equal to -80.
(2x - 1)(2x + 3)
(9r - 8)(9r + 8)
(9x + 8)(9x - 8)
-22 - -22
39
42/23