If the sum and product of the roots of a quadratic equation are 55 and 66 respectively, which of the following represents the correct quadratic equation?

x²+55x-66=0

x²-55x+66=0

x²-55x-66=0

None of these

Given sum of roots = 55 and product of roots = 66.

The quadratic equation is:

x² - (sum of roots)x + (product of roots) = 0

x² - 55x + 66 = 0