Roots of Quadratic Equation

What is the formula in finding the PRODUCT of the roots of quadratic equation?

Determine the roots of the following quadratic equation.

• x=0 or x=9

• x= 2 or x=-7

• x= 0 or x= 19

• x=5 or x=14

Determine the roots of the following quadratic equation.

• x=0 or x=3

• x= 2 or x=4

• x= 4 or x= 1/3

• x=5

• yes

• no

• yes

• no

• yes

• no