Search over 10,000 free study notes

This is a quadratic equation, for these types of questions it is often easiest to try and rearrange the formula into the form ax^2 + bx + c = 0, where a, b and c are whole numbers. Therefore the first thi...

x² + x - 12 = 0/ x² + 4x - 3x - 12 = 0 (split x into two numbers which multiply to equal -12)/ x(x + 4) - 3(x + 4) = 0 (take out x and 3 respectively)/ (x + 4)(x - 3) = 0 (collect te...

So it is easiest if we first draw out the triangle and label it.We use an equation called Pythagoras' Theorem. This equation is A^2 + B^2 = C^2So we know the length of side A (3) and side C (6), lets put ...

6.8 = 680 centimetres 1 meter = 100 centimeters 6x100 = 6000.8 meters = 80 centimeters 600 + 80 = 680 centimeters

When you have a quadratic inequality the first step is to factorize it as if trying to solve a quadratic equation. If the equation is not easy to factorize, then complete the square or use the quadratic f...