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KengaRu [80]
2 years ago
12

(5+3√2)² simplify the following​

Mathematics
2 answers:
Elden [556K]2 years ago
5 0

Hello!

Here, we apply the algebraic identity :

\boxed {(a + b)^{2} = a^{2} + 2ab + b^{2}}

Let's solve!

⇒ (5 + 3√2)²

⇒ (5)² + 2(5)(3√2) + (3√2)²

⇒ 25 + 30√2 + 18

⇒ \boxed {43 + 30\sqrt{2}}

∴ The final answer will be 43 + 30√2.

madam [21]2 years ago
3 0

Answer:

(5+3\sqrt{2} )^{2} =43+30\sqrt{2}  

≈85.43

Step-by-step explanation:

apply the binomial theorem to the square

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

=25+30\sqrt{2} +18\\

=43+30\sqrt{2}

≈85.43

Hope this helps

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