Question

using identity a^2- b^2 =(a+b) (a-b). Find (8x)^2 (2y)^2​

Answer 1

Step-by-step explanation:

using identity a²-b²=(a+b) (a-b)

question is find (8x)²+(2y)²

(8x+2y)²

8x²+2(8x+2y)+(2y)² a²+2ab+b²

64x²+20xy+4y² a²-b²

64x²-20xy-4y²

64x²+20xy+4y² because + sign never do be cut or square

8x-2y 8x+2y ( a+b) (a-b)