Consider the equation y=a(x-r1)(x+r2) for problem 2 & 4. Problem 2. State the coordinates of the vertex. Problem 4. State the value of the discruminant. Problem 14. Solve: sqrt(x-4) + 10 = sqrt(x+4) Problem 22. Find integers b and c such that the equation x^3+bx^2+cx-10=0 has -2+i as a root. Problem 23. If P(x) is a cibic polynomial such that P(-3)=P(-1)=P(2)=0 and P(0)=6, find P(x).