Question

find the square of 3+2underoot5​

Answer 1

$\huge\mathbb{A~N~S~W~E~R}$

$= {(3 + 2 \sqrt{5}) }^{2} \\ \\ = {(3)}^{2} + 2(3)(2 \sqrt{5} ) + {(2 \sqrt{5} )}^{2} \\ \\ = 9 + 12 \sqrt{5} + 20 \\ \\ = 29 + 12 \sqrt{5}$

${\huge\color{Red}{Answer~is29~+12\sqrt{5}. }}$

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