Question

(√5 x-√2 y) (√5 x+√2 y)

Answer 1

Answer:

5x²- 2y²

Step-by-step explanation:

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

Answer 2

(√5 x-√2 y) (√5 x+√2 y)

=√5x×(√5x+√2y)-√2y×(√5x+√2y)

=5x²+√10xy-√10xy-2y²

=5x²-2y² ans