X^2-2x-9 pls factorize
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x²-2x-9
= (x)²-2(x)(1)+(1)²-(1)²-9
= (x-1)²-1-9
= (x-1)²-10
= (x-1)²-(√10)²
= (x-1-√10)(x-1+√10)
= (x)²-2(x)(1)+(1)²-(1)²-9
= (x-1)²-1-9
= (x-1)²-10
= (x-1)²-(√10)²
= (x-1-√10)(x-1+√10)
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this is the answer. .....
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