Question

31) Simplify the expression (√5-√2)(√5+√2) ​

Answer 1

Answer:

3

Step-by-step explanation:

(√5-√2)(√5+√2)

Using

(a-b)(a+b)=a²-b²

So,(√5)²-(√2)²=>5-2=3

Answer 2

Answer:

$( \sqrt{5} - \sqrt{2} )( \sqrt{5} + \sqrt{2} ) \\ \\ = ( \sqrt{5} ) ^{2} - ( \sqrt{2} ) ^{2} \\ \\ = 5 - 2 \\ \\ = 3 \\ \\ formula \: used \: \\ \\ a ^{2} - b ^{2} = (a + b)(a - b)$

hope it helps u ✌