Question

value of 8 root 45 minus 8 root 20

Answer 1

Answer:

$\boxed{8\sqrt{5}}$

Step-by-step explanation:

$8\sqrt{45}-8\sqrt{20}$

$\implies 8\sqrt{9\times 5} - 8\sqrt{ 4\times 5}$

$\implies( 8\times 3)\sqrt{5} - (8\times2)\sqrt{5}$

$\implies 24\sqrt{5} - 16\sqrt{5}$

$\implies \sqrt{5}( 24 - 16 )$

$\implies 8\sqrt{5}$

Hope it helps you

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