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Factorise the following expression: x^2-1

(x+1)(x-1)

Answered by Nelson T. • Maths tutor

3177 Views

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) y² + 4x = 12

An...

Answered by Akhil S. • Maths tutor

3088 Views

Differentiate e^2x
=2e^2x

Rule: f(x)= e^kx

f'(x)= ke^kx

TF
Answered by Tesni F. • Maths tutor
4624 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}
BT
Answered by Brad T. • Maths tutor
11032 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 t...
JH
Answered by Joy H. • Maths tutor
20602 Views
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Top answers

Factorise the following expression: x^2-1

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

Differentiate e^2x

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

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

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