Question

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

Answer 1

hey there

the attachment is ur answer

hope it helps :-)

Answer 2

$7 \sqrt{2} {x}^{2} - 10x \: - 4 \sqrt{2 } \\ = 7 \sqrt{2} {x}^{2} \: - 14x \: + 4x \: - 4 \sqrt{2} \\ = 7 \sqrt{2}x(x - \sqrt{2}) \: + 4(x - \sqrt{2} ) \\ = (7 \sqrt{2}x + 4)(x - \sqrt{2} )$