Question

pls find answer.
by algebraic identities ​

Answer 1

Answer:

1)( 2x+ y/3)^2

(a+b)^2 = a^2+b^2+2ab

here a= 2x b= y/3

(2x)^2+ (y/3)^2 + 2× 2x × y/3= 4x^2+ y^2/9+ 4/3 xy

2) (3x+4) (3x+8)

3x (3x+8) + 4(3x+8)

9x^2+ 24x+ 12x+ 32

9x^2 +36x + 32