Question

Factorise: 6 - x^2 - 2x^2 (With Process)​

Answer 1

ANSWER = √2

$\sf\ 6 - {x}^{2} - 2 {x}^{2} \: \: = \: \: 6 - 3 {x}^{2}$

$\sf\ 6 - 3{x}^{2} = 0$

$\sf\ 3 {x}^{2} = \: \: 6$

$\sf\ {x}^{2} = \frac{6}{3}$

$\sf\ {x}^{2} = 2$

$\sf\ x = \sqrt{2}$