Question

factorise root 5 x2-8x-4root5

Answer 1

Answer:

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Step-by-step explanation:

$\sqrt{5} {x}^{2} - 8x - 4 \sqrt{5} \\ = > \sqrt{5} {x}^{2} - 10x + 2x - 4 \sqrt{5} \\ = > \sqrt{5} x(x - 2 \sqrt{5} ) + 2(x - 2\sqrt{5} ) \\ = > ( \sqrt{5} x + 2)(x - 2 \sqrt{5} ) \\ = > x = \frac{ - 2}{ \sqrt{5} } , + 2 \sqrt{5}$