Question

do q6 plz urgent needed

Answer 1

1. m^2+n^2-2mn
=(m-n)^2
=(-2-2)^2
=16

2.(-2)^2+(2)^-2
=4+1/4
=17/4

3.6*-2^-3+4*2^2
=-3/4+16
=61/4

4.2*2^3-3(-2)
=16+6
=22 Ans