Question

please answer.
if you answer I follow you.
but give wright answer
answer - 49/16xpower2-7/3xy+4/9ypower2
please tell by writing that how this answer come. I mean solve the question ​

Answer 1

Answer:

Firstly please repeat the question.

I have the problem to understand the question.

Answer 2

Answer:

• (a-b)²=a²-2ab-b² >>>>>>> use of this formula

(7x/4-2y/3)²=

(7x/4)²-2*7x/4*2y/3+(2y/3)²=

(7x)²/4² - (2*7*2)/(4*3)*xy + (2y)²/3²=

49x²/16-7/3*xy + 4y²/9=

49/16x² - 7/3xy + 4/9y²