Question

Evaluate and solve this expression: 3m2+2n2 when m=2, n=8.

Answer 1

140

Explanation:

3m²+2n²

=3(2)²+2(8)²

=3(4)+2(64)

=12+128

=140

Answer 2

Explanation:

Step 1: Set m to 2 and n to 8

`3m^2+2n^2`

`3(2)^2+2(8)^2`

`3(4)+2(64)`

`12+128`

`140`

Answer:
`140`