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The equation above is an example of a quadratic. The easiest way of solving this is to split the equation into two brackets, allowing you to equal each individual bracket to zero, and so get a value of x....

The way to tackle this particular question requires the need for 2 formula equationsThe sum of all the interior angles of a regular polygon can be worked out by subtracting 2 from the number of sides, and...

4m +3 >15 -3 from each side 4m >12 divide each side by 4 to get m on its own m>3

For this we require the distance-speed-time triangle which is defined as follows:speed = distance/time.However for the we need to convert the time into hours as that's what the question requires.there is ...

1.differentiate the equation using the rule: y=xⁿ , dy/dx= nx^n-12.set dy/dx to =0 as this is where a minimum point occurs (where the gradient of the graph is = 0)3.solve for x4.then,...