Question

Simplify: (√3 - √5) (3√5 - 5√3)

Answer 1

$\sqrt{3 } \times \sqrt{5} ( \sqrt{3} - \sqrt{5} ) {?}^{2}$

Answer 2

Hey


$( \sqrt{3} - \sqrt{5} )(3 \sqrt{5} - 5 \sqrt{3} )$


$= \sqrt{3} (3 \sqrt{5} - 5 \sqrt{3} ) - \sqrt{5} (3 \sqrt{5} - 5 \sqrt{3} )$


$= 3 \sqrt{15 } - 15 - 15 + 5 \sqrt{15}$


$= 3 \sqrt{15} + 5 \sqrt{15} - 30$


$= \sqrt{15} (3 + 5) - 30$


$= 8 \sqrt{15} - 30$
• Answer •

thanks :)

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