Top answers

Solve algebraically: 6x + y = 16, 5x - 2y = 19

The first step to eliminate one of the unknowns, in this case x or y . This can be done by making the coefficient (the number before) of one of the unkowns the same number, or the negative of the same number...
CR
Answered by Caitlin R. • Maths tutor
6019 Views

Factorize x³-x

x³-x=x(x²-1)=x(x+1)(x-1)
JQ
Answered by Jia Qin L. • Maths tutor
19638 Views

Describe two ways in which a pathogen (disease-causing organism) can cause disease?

There are several ways in which a pathogen can cause disease. These can be seen in the Germ Theory of disease, made famous by Robert Koch. These include releasing toxins (1) and damaging/killing local cells ...
PM
Answered by Paul M. • Biology tutor
28989 Views

What is the difference between aerobic and anaerobic respiration?

It is important to first understand the concept of respiration. It is not the same as ventilation (breathing), as respiration is a chemical process that involves the breakdown of basic chemical molecules to ...
AL
Answered by Andie L. • Biology tutor
11471 Views

What is the most effective way to revise for an English exam?

Revising for an English exam is difficult as there isn’t a simple list of facts or formulas to memorise and being creative within a time limit is tough. However, being prepared for the exam and knowing what ...
BM
Answered by Bethan M. • English tutor
8367 Views