Question

(2x upon 3 + y (2x upon 3 - y)

Answer 1

Answer:

4x²/9 - y²

Step-by-step explanation:

2x/3+y × 2x/3-y

4x²/(3+y)(3-y)

4x²/9-y² [·.· (a+b)(a-b) = a² - b²]

Answer 2

Answer:

Step-by-step explanation:

Given that,

2x / 3 + y ( 2x / 3 - y )

=2x / 3 [ 1 + y ( 1 - y ) ( ∵ common 2x / 3 on both terms )

= 2x / 3 ( 1 + y - y² ) is the answer.