Question

simplify( root 3 + root 7) square ​

Answer 1

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Answer 2

We know that (a+b)^2 = a^2+ b^2 + 2ab. And √a × √b = √(ab).

Now (√3 +√7)^2.

= (√3) ^2 + (√7)^2 + 2√3 × √7

= 3+7+2√21

= 10+2√21