Question

simplify (4root3-3root5)power2

Answer 1

Heya ✋

Let see your answer !!!!

(4√3 - 3√5)^2

= (4√3)^2 + (3√5)^2 - 2 × 4√3 × 3√5

= 48 + 45 - 24√15

= 93 - 24√15








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Answer 2

Here is the solution
$[4 \sqrt{3} -3 \sqrt{5} ]^{2}$

by using the identity
$[a-b]^{2}= a^{2}+ b^{2}-2ab$
we get

$= [4 \sqrt{3}] ^{2} + [3 \sqrt{5}] ^{2} -2[4 \sqrt{3}][3 \sqrt{5}]$

$= 48 + 45 -24 \sqrt{15}$

$= 93 -24 \sqrt{15}$

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