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Science & Mathematics by Anonymous 2018-05-25 11:05:06
Social Science
X to the second power plus seven minus eight?
6 answers
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Anonymous
x^2 + 7 - 8 = x^2 - 1 = (x + 1)(x - 1)
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Anonymous
x^2 + 7 - 8 = x^2 - 1
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Anonymous
2x-1?
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Anonymous
Factored: x^2 - 1 is (x + 1)(x - 1)
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Anonymous
x^2 + 7 - 8 = 0 x^2 -1 = 0 x^2 = 1 x = 1 Or if you need to expand it: (x+1)(x-1)
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Anonymous
x^2 + 7 - 8 = x^2 - 1