Question

(√3+√7)^2 simplify the expression​

Answer 1

Answer:

56+2√21

step by step explanation

(√3+√7)²= (√3)²+(√7)²+2×√3×√7

= 9+49+2√21

= 56+2√21

Answer 2

$(a + b)^{2} = a^{2} + 2ab + b ^{2} \\ ( \sqrt{3} + \sqrt{7} )^{2} = (\sqrt{3})^{2} +2( \sqrt{3} \times \sqrt{7}) + ( \sqrt{7} )^{2} \\ = 3 +( 2\sqrt{21} ) + 7 \\ = 10 +( 2 \sqrt{21} )$