Question

If m=3 and n=2 then 2msquare+3nsquare-5msquaren

Answer 1

Given m=3 , n=2

RTS.. 2m^2 + 3n^2 -5m^2n

Subsitute.m,n

2(3)^2 + 3(2)^2 -5(3)^2(2)

2(9) + 3(4) - 5(9)(2)

18 + 12 - 90

30-90

-60 is the answer...