Polynomials-X

If the zeroes of the quadratic polynomial x2 + (a + 1) x + b are 2 and -3, then

The number of polynomials having zeroes as - 2 and 5 is

Given that one of the zeroes of the cubic polynomial ax3 + bx2 + cx + d is zero, the product of the other two zeroes is

If the zeroes of the quadratic polynomial ax2 + bx + c, c t- 0 are equal, then

If one of the zeroes of a quadratic polynomial of the form x2 + ax+ b is the negative of the other, then it

For x2 + 2x + 5 to be a factor of x4 + px2 + q, the value of p and q must be respectively