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Could you please go through an example question where you have to solve quadratic simultaneous equations?

Of course - let's solve this question: Question: Solve the following quadratic simultaneous equations (1) 2x + y = 4 - x (2) y 2 + 4x = 12 Answer: a) Let us start by re-arranging the first equation: 2x + y =...
AS
Answered by Akhil S. • Maths tutor
3567 Views

Differentiate e^2x

=2e^2x Rule: f(x)= e^kx f'(x)= ke^kx
TF
Answered by Tesni F. • Maths tutor
5258 Views

Solve the equation x ^2>=3(x + 6)

1. Begin by mulitplying out the bracket on the right hand side of the equation. x^2=3x+18 2. Now move all of the terms of the equation onto one side by subtracting them x^2-3x-18=0 3. The quadratic equation ...
BT
Answered by Brad T. • Maths tutor
11564 Views

Express 50p as a fraction of £4 and give your answer in its simplest form.

Firstly we know that £1 equals 100p. Then we could write 50p as £0.5 (As 50/100= 5/10= 1/2= 0.5), which is equivalent. Now we do the fraction, £0.5 over £4, which is 0.5/4, enlarge both of the numerator and ...
JH
Answered by Joy H. • Maths tutor
21938 Views

What are radians and what are they used for?

Radians are a unit of measurement. They work in the same way that we use ounces to measure mass or metres to measure length. Radians are however used to measure angles, the more common unit of measuring angl...
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Answered by Linfan S. • Maths tutor
5879 Views