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(x+2)/(x-3) - (x-1)/(x+3) can be written in the form (ax+b)/(x^2-9). Work out the value of a and the value of b.

Recall that in order to add and subtract fractions, they must have the same denominator. Therefore, we multiply the first fraction by (x+3)/(x+3) and the second fraction by (x-3)/(x-3) to create a common ...

Answered by Hannah P. • Maths tutor

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Solve the simultaneous equations 5x + y = 21, x - 3y = 9

Method 1 - By Elimination: Firstly, understand that in order to eliminate a variable, the coefficient needs to be the same for the variable in both equations. We can eliminate the x var...

Answered by Rahil V. • Maths tutor

2794 Views

Using a case study, explore the ways in which population growth can be controlled

To answer this question, I will discuss the case of Kerala, India. The Progressive Education Policy started in the 1960's, and is a non-birth rate control programme for curtailing population growth. It st...

Answered by Duncan A. • Geography tutor

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Explain the importance of the Abrahamic covenant to the history of Judaism

The Abrahamic covenant is a agreement made between Abraham (the founder of Judaism) and God. It is detailed in the Torah and in Genesis in the old testament of the Christian bible. God spoke directly to A...

Answered by Rebecca J. • Religious Studies tutor

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Simplify (2sin45 - tan45)/(4tan60) and leave your answer in the form of (sqrt(a)-sqrt(b))/c

To answer this question we need to remember the exact trig values.A trick I use for remembering these is the hand rule.For this you label any one of your hands with the set angles starti...

Answered by Isabella K. • Maths tutor

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