Question

find the value of (√5+√2)²–(√5-√2)²
pls tell​

Answer 1

(√a+√b) ^2= a+2ab+b

a=5, b=2

(√5+√2)²= 5+2(5*2) +2

= 5+2(10) +2

= 5+20+2

= 27

(√a-√b) ^2= a-2ab+b

a=5, b=2

(√5-√2)²=5-2(5*2) +2

5-2(10) +2

=5-20+2

-14

(√5+√2)²–(√5-√2)²= 27-(-14) = 27+14=41

Answer 2

Step-by-step explanation:

7+2√10-7+2√10

4√10 is the value