Question

$x {}^{2} + 6 \sqrt{2} x + 10$
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Answer 1

Answer:

${x}^{2} + 6 \sqrt{2} x + 10 = 0 \\ {x}^{2} + 5 \sqrt{2} x + \sqrt{2} x + 10 = 0 \\ x(x + 5 \sqrt{2} ) + \sqrt{2} (x + 5 \sqrt{2} ) \\( x + \sqrt{2} )(x + 5 \sqrt{2} )$

so roots are

$- \sqrt{2} \: and \: - 5 \sqrt{2}$

hope it helps.......