Question

1.Simplify: ( √5 + √2 )( √5 - √2 ).

Answer 1

Answer:

we will use

a ² - b ²

( a + b ) ( a - b)

Step-by-step explanation:

( √5 )² - ( √2 )²

5 - 2

3

Answer 2

Answer:

your answer is 3...

Step-by-step explanation:

( √5 + √2 ) ( √5 - √2 )

_____________________

let the a = √5

let the b = √2

__________

(a+b) (a-b) = (

$(a { }^{ 2} - b {}^{2} )$

it is the formula of (a+b) (a-b)..

_____________________

now, a=√5 and b=√2

( √5 square - √2 square )

the value of √5 square is 5

and the value of √2 is 2

_____________________

now,

5-2=3 is your answer...