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This is used to find the hypotenuse of a right angled triangle. To find it the formula is a²+b²=c². Remeber c is always the hypotenuse. This can also be inversed to find a or b the formula for this is c²-a²=b² or c²-b²=a²

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Remember this is a NON-CALCULATOR paper!

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The most general way to write a quadratic equation is: ax2 + bx + c = 0 Here a, b and c are numbers that vary for different equations. So if the equation was: 2x2 + 7x + 11 = 0 then a = 2, b = 7, c = 11. The formula for the solution is: x = ( -b +/- sqrt(b^2 - 4ac) )/ (2a) This formula will work for all equations that can be solved. Always try to factorise first. If the equation factorises, this is the easier method. In an exam, any question that asks for an answer to a quadratic equation correct to x decimal places should be solved using this formula. Now have a go at your own Solve 2x2 - 5x - 6 = 0