Question

Answer this question step by step.​

Answer 1

Step-by-step explanation:

(a+b)(a-b)=a^2-b^2

(0.11m-0.2n)(0.11m+0.2n)

=(0.11m)^2-(0.2n)^2

=0.0121m^2-0.04n^2

Answer 2

Step-by-step explanation:

hope it helps you ! ,.......................