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X^2 - (4*3) + 8 = 0
X^2 -4 = 0
X^2 = 4
X = 2

For a simple integration like this, begin by expanding the brackets to get 2x³-6x²+4x-12. Next each term should be integrated with respect to x, begin with the first term, each peer ...

There's a lot of information to take on in this question so it's firstly important to isolate the facts: ...

Step 1: x+y=7 can be rearranged as: x= 9 - y.Step 2: We substitute the expression of x in the second equation: 9 - y - 2y + 1 = 1Step 3: We calculate the value of y. 9 + 1 - 1- 3y=0. It is equivalent with...

First solve to find dy/dx.dy/dx = 4x^3 - 4xThe stationary points occur when dy/dx = 0. Solve the equation to find the values of x for when dy/dx = 0.4x(x^2 - 1) = 0 x = 0, x = 1, x = -1Finally su...