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We need the equation in the form (x+a)(x+b)=0. The numbers in the brackets (a and b) must multiply together to get the constant at the end of the equation, in this case 12. The numbers (a and b) must add ...

A quadratic equation will always take the form ax² + bx + c, where x is a variable and a, b and c are numbers. The equation may be given to you with several x² values, several x valu...

25 x 2 = 50
15% = 0.15
50 x 1.15 = 57.5
or
0.15 x 50 = 7.5
50 + 7.5 = 57.5

1. Give the student an example question.e.g: past paper question from OCR (higher tier) paper 4 2017
   Each week Dan drives two routes, route x and route y.
   One week he drives route x three ti...

In the 1st year the car loses 25% of its value, meaning it retains 75% of its value. The starting value (100%) was £18000, so multiplying this by the 75% retained - remembering to change this to decimal n...