Question

Expand the following: ( √5 + √2)²​

Answer 1

7 + 2√10

Step-by-step explanation:

(√5 + √2)²

= (√5)² + (√2)² + 2(√5)(√2)

= 5 + 2 + 2(√10) = 7+2√10

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Answer 2

Answer:

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

So, answer is 5 + 2(√5) (√2) + 2 = 7 + 2√10