Question

If m = 3 and n = 2 find the value of
2m² + 3n²-5mn​

Answer 1

Step-by-step explanation:

2(3)square+3(2) square - 5(3)(2)

2(9) + 3(4) - 5(6)

18+12-30

30-30

=0

Answer 2

Answer:

m=3 and n=2

then m²=3² and n²=2²

m²=9 and n²=4

so

2m²+3n²-5mn

=2×9+3×4-5×3×2

=18+12-30

=30-30

=00