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CBSE Class 9 Answered

factorise x to the power 4 - 3x to the power 2 +2
Asked by stuti | 19 Sep, 2013, 07:43: PM
answered-by-expert Expert Answer
x4 - 3x2 + 2
= x4 - x2 - 2x2 + 2
= x2 (x2 - 1) - 2(x2 - 1)
= (x2 - 1) (x2 - 2)
= (x - 1) (x + 1) (x - root 2) (x + root 2)
Answered by | 20 Sep, 2013, 08:59: AM
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