Respuesta :

tans15

Answer:

140

Step-by-step explanation:

3m²+2n²

=3(2)²+2(8)²

=3(4)+2(64)

=12+128

=140

igoroleshko156

Step-by-step explanation:

Step 1:  Set m to 2 and n to 8

[tex]3m^2+2n^2[/tex]

[tex]3(2)^2+2(8)^2[/tex]

[tex]3(4)+2(64)[/tex]

[tex]12+128[/tex]

[tex]140[/tex]

Answer:  [tex]140[/tex]

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