8 squared x 2 is equal to 128.
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That depends on what you're doing to the 8. It's either 4(x2 + 2) or 4(x2 - 2)
x2 - 11x + 24 = (x - 3)(x - 8)
x2 - (2x)2 = x2 - 4x2 = -3x2 x2 - 2x2 = -x2
x2 - 9x + 8 = (x-1)(x-8)
64-x2 = (8-x)(8+x) when factored