Question

9x^2-4(y-2x)^2.
Please tell the answer

Answer 1

Step-by-step explanation:

9x² - 4(y² + 4x² - 4xy )

9x² - 4y² - 16x² + 16xy

-7x² + 16xy - 4y²

-(7x² - 16xy + 4y² )

-(7x² - 14xy - 2xy + 4y² )

-{ 7x(x-2y) -2y(x - 2y)}

-(7x - 2y) (x - 2y)