What is the answer! Help! Slope perpendicular to line y = 2x/3 + 4

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

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

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)