Roots of Quadratic Equation – Example

Remember : Roots of a quadratic equation are the values of variables/unknowns that satisfy the equation.

Example

(a)Given x=3 is the root of the quadratic equation x 2 + 2 x + p = 0 , find the value of p.
(b)  The roots of the quadratic equation 3 x 2 + h x + k = 0   are -2 and 4. Find the value of h and k.


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