How to solve a quadratic equation.

Group the like terms together to make the equation less messy leaving the equation equal to 0.Simplify the long quadratic equation into brackets.Each bracket must be equal to 0 to fulfil the equation.When a bracket is equal to 0 the sum of the terms in the bracket must be 0 which will help us find the unknown.

IB

Related Maths GCSE answers

All answers ▸

Solve ((3x-2)/4) - ((2x+5)/3) = ((1-x)/6)


Solve algebraically: 6a+b = 16 and 5a - 2b = 19


Solve the simultaneous equation: 2x + y = 18 and x−y=6


Aditi, Becky and Cali collect coins. Aditi has 6 more coins than Becky. Cali has 1 less coin than Aditi. Altogether they have 71 coins. How many coins do they each have? Show all your working.