Question

Please solve needed as soon as possible thank you I really appreciate it

Answer 1

143

Explanation:

Substitute n=3 into the problem

6(
`3^(3)`)-2(
`3^(2)`) +3-4

Then figure out squared and power by 3

6(27)-2(9)+3-4

Next multiply

162-18+3-4

Finally, add and subtract

144+3=147

147-4=143