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Factorise x^2-x-6=0, and solve, finding the values of x

When you factorise an equation, the final form should look like this: (x+a)(a+b)=0 in order to work out the possible value(s) for x. As a result, working backwards, we expand the already factorised final for...
LS
Answered by Lior S. • Maths tutor
8942 Views

Rewrite in the logarithmic form: T=2π√(L/G)

Firstly we should add log to both sides of the equation, knowing that modifying one side can be balanced by doing the exact same thing on the other side. On the right hand side, using logarithmic identities,...
JP
Answered by Javier P. • Maths tutor
15737 Views

What is Pythagorus Theorem ? Find the length of BC if given a right angle triangle ABC where AB is 8cm and the length of the hypotenuse AC is 10cm ?

Pythagorus Theorem states that the side of a 'Right Angled Triangle' can be found by using the formulae c 2 = a 2 + b 2 , where c is considered as hypotenuse. In our case the hypotenuse is AC and by putting ...
MH
Answered by Momina H. • Maths tutor
7454 Views

Determine the coefficient of y^3 in the binomial expansion (2x-3y)^4

Using the method of binomial expansion (which I will cover in more detail) we get (2x-3y)^4 = + 1(2x)^4(3y)^0 - 4(2x)^3(3y)^1 + 6(2x)^2(3y)^2 - 4(2x)^1(3y)^3 + 1(2x)^0(3y)^4 = = 16x^4 - 96x^3 y + 216x^2 y^2 ...
DM
Answered by Davids M. • Maths tutor
11942 Views

Solve: 5x - 2 > 3x + 11

5x - 2 > 3x + 11 5x - 3x > 11 + 2 2x > 13 x > 13/2 x > 6.5
HK
Answered by Henry K. • Maths tutor
4283 Views