Question

factorise the following:-8x^2+5​

Answer 1

Step-by-step explanation:

$- 8 {x}^{2} + 5 = 0$

$8 {x}^{2} = 5$

${x}^{2} = \frac{5}{8}$

$x = ± \frac{ \sqrt{5} }{2 \sqrt{2} }$