Factorise the Following Expression by perfect Square method 2x²-10x+8
but the Answer is (2x-1)(x-4)
say step by step
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Answer:
2x² - 10x + 8
=> 2 ( x² - 5x + 4 )
=> 2 { x² - ( 4 + 1 )x + 4 }
=> 2 { x² - 4x - x + 4 }
=> 2 { x ( x - 4 ) - 1 ( x - 4 ) }
=> 2 { ( x - 4 ) ( x - 1 ) }
=> 2 ( x - 4 ) ( x - 1 ) [ • Required Answer ]
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