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The first step will be to rearrange the eqn so that the loose number appears on the RHS and the x and y terms are grouped. After this step the eqn will appear as x2 + 2x + y2 - 6y = ...
Quadratic equations have a variable usually the letter x (but it could be any letter or symbol in theory).The value of x is unknown but you can work it out after following a few simple steps. Here is an e...
Firstly differentiate the function:f(x) = x3 + 3x2 + 2x + 5 (function)f'(x) = 3x2 + 6x + 2 (gradient function)Stationary points are points where the graph ...
Find two numbers that multiply to give 2 and add together to give 3: 1 and 2Factorise: (x+2)(x+1)=0The solutions are x= -2 and x= -1Explanation: Brackets means you multiply, this means t...
2 unknowns? Let's make it into a simpler equation you know how to solve with only one unknown! How? Key is to note that you can add and subtract equations. You can also multiply the equations by some cons...
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