Question

Factorise X2-2underroot2x-30

Answer 1

$\huge\bigstar\sf\red{Answer:}$

$\sf{x^{2}-2\sqrt2x-30}$

$\sf{x^{2}-5\sqrt2x+3\sqrt2x-30}$

$\sf{x(x-5\sqrt2)+3\sqrt2(x-5\sqrt2)}$

$\sf{(x-5\sqrt2)(x+3\sqrt2)}$

$\sf{The factorised form is}$

$\sf{(x-5\sqrt2)(x+3\sqrt2)}$