Question

simplify the following expression a) (√3+√7)² b) (√5-√3)² c) (2√5+3√2)²​

Answer 1

Step-by-step explanation:

a)(√3+√7)²

=(√3)²+2×√3×√7+(√7)²

=3+2√21+7

=10+2√21

b)(√5-√3)²

=(√5)²+(√3)²-2×√5×√3

=5+3-2√15

=8-2√15

c)(2√5+3√2)²

=(2√5)²+(3√2)²+2×2√5×3√2

=20+18+12√10

=38+12√10