How is the quadratic formula used?
When you are told to solve a quadratic equation and when factorising is not possible, quadratic formula can be used to find out the solution. First you will need to get the coefficients from the quadratic equation and then plug in these values into the equation appropriately and solve!
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Related Maths GCSE answers
All answers ▸Find the gradient of the line on which the points (1,3) and (3,4) lie and find the y-coordinate of the line at x = 7.
There are 200 students in Year 10. 110 are boys. There are 250 students in Year 11. 140 are boys. Which year has the greater proportion of boys?
How do I apply the correct formulae and other methods to difficult looking questions?
Solve simultaneously x + y = 1, 2x + 3y =9