(x - 1)(x - 1)(x - 1) - (x + 1)(x + 1)(x + 1)
X + 1 - x - 1 = 0, for all x. Regroup: (x - x) + (1 - 1) = 0 + 0.
x + 1
(x + 3)(x - 1)(x + 1)
1
(x - 1)(x - 1)(x - 1) - (x + 1)(x + 1)(x + 1)
X + 1 - x - 1 = 0, for all x. Regroup: (x - x) + (1 - 1) = 0 + 0.
x + 1
-3
"10x - x" is basically 10 x's minus one x. The answer is 10 minus 1, but in terms of x. Since 10 minus 1 is 9, the answer is 9x.
(x + 3)(x - 1)(x + 1)
1
(x - 1)(x + 1)
x³ - x² + x - 3 (x² + 1)(x - 1) - 2
x2 - x - 2 = 0(x - 2)(x + 1) = 0x = 2 and -1
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x = 1