Factor x4 - 81. Step 1: both numbers have square roots and have a minus sign between them so the first factor result is (x2+9)(x2-9). Step 2: (x2+9) does not factor, but (x2-9) factors to (x+3)(x-3). Step 3: Solution is (x2+9)(x+3)(x-3).
It is: (x-y)4
(x2 + 1)(x2 - 2)
2x to the fourth power minus 162 equals -146
x cubed minus 216
x4 - 81 = 0x4 = 81x = 3
It is: (x-y)4
(x2 + 1)(x2 - 2)
2x to the fourth power minus 162 equals -146
x^2(x - 4)(x + 4)
x cubed minus 216
x4 - 81 = 0x4 = 81x = 3
No.
(9r - 8)(9r + 8)
(9x + 8)(9x - 8)
Eighty nine minus seventy six equals thirteen
5 or -5
(3x^2 - 4y^2)(3x^2 + 4y^2)