Question

simplify (root 3 +root 5)²​

Answer 1

Answer:

√3^2 +2×√3×√5 + √5^2

3+2√15+5

8+2√15

Answer 2

Answer:

(√3+√5)².

It is in the form of (a+b)²=a²+b²+2ab where a=√3 & b=√5.

(√3+√5)²=(√3)²+(√5)²+2(√3)(√5).

=3+5+2√15. (Because √3×√5=√15).

=8+2√15.

I think this is your answer.