X 3 – 3x2 + 3x +7 factorise
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Now, x³ - 3x² + 3x + 7
= x³ + x² - 4x² - 4x + 7x + 7
= x²(x + 1) + -4x (x + 1) + 7 (x + 1)
= (x + 1) (x² - 4x + 7),
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akshayamanoj9:
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how did u get 4 and 7 in the second step
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this is the answer
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