Question

simplify (3 + root 5) square​

Answer 1

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$(3+\sqrt{5})^{2}$

$We\: know,\\(a+b)^{2}=a^{2}+b^{2}+2ab\\So,\\(3+\sqrt{5})^{2}=3^{2}+(\sqrt{5})^{2}+2(3)(\sqrt{5})\\=9+5+6\sqrt{5} \\=14+6\sqrt{5}\\ \\ \\FOLLOW \:AND\: MARK \:AS \:BRAINLIEST$