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Make a the subject of the following equation, p=(3a+5)/(4-a)

In this question I would initially aim to get an a on both sides of the equation. My first step would be to multiply both sides by (4-a) to do this. After this point I would expand out the brackets on ...

MO
Answered by Martin O. • Maths tutor
7939 Views

Derive from the standard quadratic equation, the form of the quadratic solution

ax2+bx+c=0 : basic quadratic equation

a(x2 + bx/a) + c=0  

a((x+b/2a)2 -

JD
Answered by Jaiveer D. • Maths tutor
6338 Views

How to use 'ser' and 'estar'

Both ser and estar translate in English as 'to be'. Ser and estar, however, are very different in both meaning and usage. 

First of all it is important t...

CS
Answered by Callum S. • Spanish tutor
5026 Views

Factorise and solve: x^2 - 8x = -15

Step 1: The first step is to rewrite the equation in the form ax2 + bx + c = 0. So in this case, we achieve this by...

MJ
Answered by Maisie J. • Maths tutor
7319 Views

What are the products of the reaction between an acid and a base?

A salt and water (H2O). H+ from the acid and OH- from the base combine to make water. The salt formed depends on the acid and base counterions, and is usually dissolved in...

GH
Answered by George H. • Chemistry tutor
7358 Views

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