Question

Find the square of 4 x minus 5 y and 5 x + 2 y

Answer 1

Answer:

(4x-5y)^2.

(4x)^2 - 2*4x*5y + (5y)^2

16x^2 - 40xy + 25y^2

(5x+2y)^2

(5x)^2 + 2*5x*2y + (2y)^2

25x^2+20xy+4y^2