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First: (x + 2)(x + 3) = x2 + 5x + 6
Second: (x2 + 5x + 6)(x + 6) = x3 + 5x2 + 6x + 6x2 + 30x + 36 = x3 + 11x2 + 36x +36<...
In order to do this question one has to first recognise that this is a product and thus has to be solved using Integration by parts. Firstly write out the formula: ∫u.dv/dx dx = uv - ∫v. du/dx dx ...
We want to make P = xy^2 into something more complicated, which only has Xs, and no Ys.
Firstly, you need to remember that when there are two equations, the question will almost definitely involve...
Notice that the questions specifies that you should expand and simplify. This means expanding the equations is a good idea. To expand the equation, we will start by expanding each brackets.
3(x-2)-...
To find the answer to this, we can use the point-slope form. To do this: y - (-7) = 3 (x - 4) Simplified: y + 7 = 3x - 12 : y = 3x - 19
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