Question

factorise
$7\sqrt{2x {}^{2} } - 10x - 4 \sqrt{2}$


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Answer 1

➡️➡️➡️➡️7√2x² - 10x - 4√2

=> 7√2x² - ( 14 - 4 ) x - 4√2

=> 7√2x²- 14x + 4x - 4√2

=> 7√2x( x - √2 ) + 4( x - √2 )  

=> ( x - √2 ) ( 7√2x + 4 )

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