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To factorise this equation we want to get 2 brackets. We are looking for 2 numbers which multiply to make -12 and add to make -1. So, let's see some factors of -12: -12 = (-1) x 12; (-2) x 6; (-3) x 4; (-...
First we use the product rule, so we multiply x by the derivative of (x+3)5. To find the derivative of (x+3)5 we use the chain rule. So we have 5(x+3)4. So the first part...
In order to solve these simultaneous equations we first want to eliminate one of the variables (x or y) and find a solution to the variable remaining (y or x) and then use this solution to find the second...
Find roots, stationary points, classify, sketch.
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