Question

The expanded form of (x-2y)whole square is xto the power 2 -4ywhole square-4yx. Is the given statement correct? Justify.​

Answer 1

Step-by-step explanation:

Given data:-

(x-2y)² = (x²-4y²-4xy)

.

.

L. H. S.

as we know that:-

(a+b)²= a² + 2ab + b²

and

(a-b)² = a² - 2ab + b²

.

according to formula:-

.

(x-2y)²= x² - 2(x)•(2y) + (2y)²

(x-2y) ²= x² - 4xy + 4y²

.

.

solution:- Given statement is not correct.