Factor 4x^2-49y^2 Please help me get the answer

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !