Question

Multiply (2.5 x-0.5 y) and (2.5 x+0.5 y)

Answer 1

(2.5x-0.5y)×(2.5x+0.5y)

=(2.5x)^2 -(0.5y)^2

=6.25x^2-0.25y^2

if u want the final answer is

=0.25 [ 6x^2-y^2]

Answer 2

(2.5x-0.5y)(2.5x+0.5y)

(2.5x)^2-(0.5y)^2

6.25x^2-0.25y^2