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Solve the quadratic equation x^2-6x+5=0

x 2 - 6x + 5 = 0. For simple quadratic equations such as this example we need to factorise the expression into 2 brackets: (x+a)(x+b) = 0. To find a and b we can expand the brackets to give: x 2 + (a+b)x +ab...
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Answered by William R. • Maths tutor
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To what extent did Siegfried Sassoon influence Wilfred Owen's role as a war poet?

Siegfried Sassoon, a contemporary of Wilfred Owen, was one of his associates whilst Owen recovered in Craiglockhart, and is often seen as a figure of worship to Owen, and perhaps even an object of his affect...
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I didn't quite understood the difference between the active and passive voice in French, could you explain?

The active voice present the subject of the sentence as the main protagonist of the action. In contrary, the passive voice present the subject of the sentence as going through the action. For example: Nos am...
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Answered by Audrey L. • French tutor
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How do you know when to add probabilities together and when to multiply them together

A probability that an event occurs will always range between 0 and 1. If you want to know the probability of two events both happening you would multiply them together. For exampke what is the probability I ...
PS
Answered by Priyen S. • Maths tutor
6318 Views

What is the name of the valve responsible for preventing blood flow from the left ventricle to the left atrium of the heart?

Mitral Valve The mitral valve is a large 'flap' between the two left chambers of the heart. When this is open, it allows oxygenated blood to fill the left ventricle of the heart from the atrium. When the hea...
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Answered by Ella H. • Biology tutor
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