Help me pls! I’ll give u 15 points!

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Icould really use some with this question.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?