Expand (2x+4)(x-3)
2x^2 - 2x - 12
AS
Related Maths GCSE answers
All answers ▸The time, T seconds, it takes a water heater to boil a constant mass of water is inversely proportional to the power, P watts, of the water heater. When P is 300, T is 20. What is T when P is 400?
Paul organised an event for a charity. Each ticket for the event cost £19.95 Paul sold 395 tickets. Paul paid costs of £6000 He gave all money left to the charity. (a) Work out an estimate for the amount of money Paul gave to the charity.
What is the name of a triangle with two equal sides and angles? What is the size of the angle x?
Solve x^2+10x+5=0 using completing the square.