Question

answer this easy question and earn 49+25 points

Answer 1

!! Hey Mate !!

your answer is --


(1) (3√5 - 2√3) (3√5 + 2√3)

using identity a^2 - b^2 = (a+b)(a-b)

= 3√5^2 - 2√3^2

= 45 - 12

= 33
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(2) (√2+1) (√2 +3)

= 2 + 3√2 + √2 + 3

= 4√2 + 5
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(3) we have
$\frac{2 + \sqrt{3} }{2 - \sqrt{3} } + \frac{2 - \sqrt{3} }{2 + \sqrt{3} } \\ \\ = \frac{ {(2 + \sqrt{3)} }^{2} + {(2 - \sqrt{3)} }^{2} }{ {2}^{2} - { \sqrt{3} }^{2} } \\ \\ = \frac{4 + 3 + 4 \sqrt{3} + 4 + 3 - 4 \sqrt{3} }{4 - 3} \\ \\ = \frac{14}{1} = 14$
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【 Hope it helps you 】
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Answer 2

hey mate wait one sec I solve it nd upload a pic