Question

simplify (c) (5x + 2y)2 + (5x – 2y)2
(d) (2 x+3y)2+(2x-3y)2
(e) ( 1.1x - 0.9y )2 –(0.9x-1.1y)2​

Answer 1

Answer:

please tell that is the 2 square?

Answer 2

cannot understand the questions