9x squared plus 16 = 0 factored is plus and minus 4/3 i.
It is a difference of squares. 9x^2-49=(3x+7)(3x-7)
(3x + 8)(3x - 8)
(9x2 + 7)(9x2 - 7) = 81x4 - 49
4 squared is 16. 4 squared means that 4 is used as a factor 2 times. 4x4=16
x2-9x can be factored by taking x out of each term x(x-9)
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
Let the symbol ^ mean "to the power" Then 9x^2 + 24x + 16 = (3x + 4)(3x +4) = (3x + 4)^2
You don't need to factor that; you can add them together, since they have the same variable.However, assuming you might mean 81x squared + 9x, you can take out the common factor, which is 9x.
Type your answer here... 81
9x2 + 8x - 1 = (9x - 1)(x + 1)
(9x + 8)(9x - 8)
9x squared-15x squared = -6
It is a difference of squares. 9x^2-49=(3x+7)(3x-7)
x2 - 9x + 8 = (x-1)(x-8)
(3x + 8)(3x - 8)