Question

Simplify (√7+ √2) the whole square

Answer 1

Answer:

(√7 + √2)² = 9 + 2√14

Step-by-step explanation:

= (√7 + √2)²

(a+b)² = a²+2ab+b²

= (√7)² + 2(√7)(√2) + (√2)²

= 7 + 2√14 + 2

= 9 + 2√14

Answer 2

Answer:

using algebraic identity (a+b)^2

=a^2+2ab+b^2

=7+2+2(√7×√2)

9+2(√14)

9+7.5

16.5