Question

simplify (√5+√2) ^2​

Answer 1

Step-by-step explanation:

using expansion formula

(a+b)^2 = a^2 +2ab +b^2

therfore

√5^2 + 2*√5*√2 + √2^2

5+2√10+2

=7+2√10

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Answer 2

7 + 2$\sqrt{10}$7+2

10

(a+b)²=a²+b²+2ab