Would you rather it be a holiday everyday or there be no holidays for the rest of your life?

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

I'm confused on this could anyone me and show me what i need to do to solve it.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square