How many solutions does a quadratic equation have?

A quadratic equation "ax2+bx+c=0" can have 0, 1 or 2 solution.

This depends on the discriminant which is (b2 - 4ac)

If the discriminant is positive, then there are 2 solutions

If it equals 0, there is one solution.

If it is negative, there is no solution.

PD

Related Maths GCSE answers

All answers ▸

John and Tom take a test. John scores p marks. Tom scores three times what John scored. Their total score is 188. What was Tom's score?


Evaluate 5/(x−1)+2/(x+4)


two connected triangles in an overall shape ABCD, find length AD


v = u + at, u = 1 a = -3 t = 1/2, Work out the value of v.