7root 2x^2-10x-4root 2
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Step-by-step explanation:
We have
7√2x² - 10x - 4√2
= 7√2x² - 14x + 4x - 4√2
= 7√2x ( x - √2 ) + 4 ( x - √2 )
= ( x - √2 ) ( 7√2x + 4 )
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