Please help me solve this!

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

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Precalculus question, image attached.