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Solve x^2 – 6x – 8 = 0 Write your answer in the form a ± √ b where a and b are integers. (Higher tier paper)

To solve this equation we cant use the PSF method, as nothing multiplies to -8 and adds to -6. (Also in the question it says the answer will be in a±b which is normally what you get when you can't factori...

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Answered by Alex D. Maths tutor
17756 Views

Describe how Homer makes Books 9-12 of the Odyssey vivid ?

During these books, Homer creates a flashback sequence narrated by the protagonist Odysseus himself. This is exciting for the reader as finally, we can witness Odysseus creativity firsthand in his storyte...

ST
5411 Views

Why was the experiment on DNA done by Meselson and Stahl strong evidence that DNA replication is semi-conservative?

Three theories for DNA replication at the time: Conservative replication: When DNA was replicated, entirely new molecules of DNA were made, meaning a newly replicated DNA molecule ...

PB
Answered by Patricia B. Biology tutor
6164 Views

How do negative and positive feedback loops occur and how are they different?

Think of them as a flow chart.

Stimulus (a change)
    |
Sensor (detects the change)
    |
Control (sends a signal about t...

EC
Answered by Emma C. Biology tutor
6691 Views

How do you prove the formula for the sum of n terms of an arithmetic progression?

An arithematic progression has terms in a sequence such that the difference between any two consecutive terms is a constant and is given by a common difference, say, d. If first term in the progression is...

NB
8526 Views

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