x4-49 is the difference of two squares when factored as (x2-7)(x2+7)
Chat with our AI personalities
(x - 7) is.
49 - x2 = -(x2 -49) = - (x-7)(x+7) divide by x -7 Answer: -(x+7) = -x-7
(-7)^4 = (-7)x(-7)x(-7)x(-7) = (49)x(49) = 2401
(-2)^4 = -2 x -2 x-2 x-2 = +16 ( a minus times a minus is plus)
x4+6x3-2x-12 (x3-2)(x+6)