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Find the solutions to x^3+4x^2+x-5=1

These cubic equations are usually fairly simple once the method is known, firstly make the right hand side (RHS) equal to zero by subtracting 1 from both sides: x^3+4x^2+x-6=0 Now the next step is a quick bi...
LH
Answered by Luke H. • Maths tutor
5229 Views

What's the difference between the mean, median and mode?

The mean, median and mode are three types of averages which you will be asked about in your GCSE maths exam. The best way to learn maths is by by doing it or at least running through examples. E.g. Given the...
TK
Answered by Thomas K. • Maths tutor
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How do I factorise a quadratic equation?

Firstly , make sure you agree that a quadratic equation is an equation of the form y = ax 2 + bx + c where a , b , c are (real) constants ( a is not 0), and x is the variable. (Note: the equation has an &quo...
GL
Answered by Gemma L. • Maths tutor
5723 Views

differentiate x^3(1+x)^5 with respect for x

First we have to use the product rule, remember that if we have h(x)=f(x)g(x) then h'(x)=f'(x)g(x)+f(x)g'(x).So h'(x) = x^3D[(x+1)^5]+(x+1)^5D[x^3]Completing the unfinished derivatives,h'(x) = x^3[5(x+1)^4]+...
RL
Answered by Robert L. • Maths tutor
4841 Views

solve z^4=2(1+isqrt(3)) giving roots in form r(cos(theta)+isin(theta))

Sorry but it's a little hard to write the question out! I have the working on paper but I can't upload it. Ok so first you need to multiply out the brackets to make it a little easeier to look at and obtain ...
RL
Answered by Robert L. • Maths tutor
6792 Views