Question

the value of expression 2m2 -5n when m=2 and n= -1​

Answer 1

Answer:

I think the question is not complete

Answer 2

Answer:

The value of the expression is 13.

Step-by-step explanation:

$2 {m}^{2} - 5n = 2 ({2}^{2} ) - 5( - 1) \\ = 8 + 5 \\ = 13$