If the roots of the quadratic equation kx2+ (a + b)x + ab are (-1) and(-b), then the value of k is?

If the roots of the quadratic equation kx2+ (a + b)x + ab are (-1) and

1.	If the roots of the quadratic equation kx2+ (a + b)x + ab are (-1) and(-b), then the value of k is?
Answer» The value of k is 1, if the roots of the quadratic equation kx²+ (a + b)x + ab are (-1) and (-b). An equation of the form ax²+ bx + c = 0, where a ≠ 0 is called a quadratic equation.