Question

( x - 2y)(x + 2y) = ???

Answer 1

\(\left(x-2y\right)\left(x+2y\right)=x^2-4y^2\)

Answer 2

(x - 2y)(x + 2y)

= x² - 4y²

Answer 3

( x - 2y)(x + 2y) =x^2-4y^2

Answer 4

Ta có:

\(\left(x-2y\right)\left(x+2y\right)\)

\(=x^2-\left(2y\right)^2\)

\(=x^2-4y^2\)

Vậy...

Answer 5

\(\left(x-2y\right)\left(x+2y\right)=x^2-4y^2\)