Question

Can I get a help with the second one please!

Answer 1

897

Step-by-step explanation:
Start with replacing all the
`t` with 2.

`(t^(2) + 6t+7)(3t^(2) +3)`

`(2^(2) + 6(2)+7)(((3)(2))^(2) +3)`

Deal with the exponent before multiplying and adding.


`(2^(2) + 6(2)+7)(((3)(2))^(2) +3)`

`(4 + 6(2)+7)(((3)(2))^(2) +3)`

`(4 + 12+7)(((3)(2))^(2) +3)`

`(23)(((3)(2))^(2) +3)`

Now I believe here is where you made your mistake, you should first multiply 3 and 2 instead of evaluating the exponent straight away, because
`3t` was squared together.


`(23)(((3)(2))^(2) +3)`

`(23)(6^(2) +3)`

`(23)(36 +3)`

Then after adding, just multiply to get your answer, 897.


`(23)(36 +3)`

`(23)(39) = 897`