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How do you complete the square? example: x^2 + 8x + 13=0

the method to complete the square is as follows; -take the constant (13) away from both sides of the equation leaving x and x^2 terms only on one side of the equation: x^2+8x=-13 -Add half of the value of th...
JM
Answered by John-Felipe M. • Maths tutor
5665 Views

How do I answer a source based question?

When answering source based questions it is important to separate it into Content Origin Purpose, or COP. Then within the sub-section make sure you look for clues within the source. Therefore you will always...
RJ
Answered by Rebecca J. • History tutor
10238 Views

Explain the process on mitosis

Mitosis is the process of cell division - in which one cell divides to form two cells that are identical to it and then also to each other. These new cells that are formed are called sister cells. The proces...
MB
Answered by Mahreen B. • Biology tutor
6221 Views

I am getting stuck on how to solve Simultaneous Equations, can you explain how to do this?

I always find with simultaneous equations that it is first important to remember what you are actually trying to do- to work out the values of x and y given what you know about them. So lets use this example...
CS
Answered by Chris S. • Maths tutor
5044 Views

When should I use Pretérito Perfecto and Pretérito Indefinido?

We use Pretérito Perfecto if the timeframe we situate a sentence in hasn’t ended. For example: Hoy he ordenado mi escritorio. – Today I cleaned my desk. - The day hasn’t ended yet, that’s why I used the Pret...
KK
Answered by Klaudia K. • Spanish tutor
11140 Views