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14. x4 +x2+1 |
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Answer» Consider x⁴+ x²+ 1 = (x⁴+ 2x²+ 1) – x² = [(x²)²+ 2x²+ 1] – x² = [x²+ 1]²– x² It is in the form of (a²– b²) = (a + b)(a – b)Hence [x²+ 1]²– x²= [x²+ 1 + x] [x²+ 1 – x] |
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