(x2-2x)2-23(x2-2x)+120
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here is ur answer mate....
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Answered by
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Step-by-step explanation:
(x^2-2x)^2 - 23 (x^2-2x) + 120
let a=x^2-2x
a^2-23a+120
a^2-15a-8a+120
a(a-15) - 8(a-15)
(a-15) (a-8)
(x^2-2x-15) (x^2-2x-8)
(x^2+3x-5x-15) (x^2-4x+2x-8)
(x(x+3)-5(x+3)) (x(x-4)+2)(x-4))
(x+3) (x-5) (x-4) (x+2)
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