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Integrate (x+2)^2 dx

There are multiple methods that be applied here to reach a solution, integration by substitution or by applying the basic rules of integration. The first step would be to expand the expression within the par...
Answered by • Maths tutor
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Describe how water moves from roots to leaves.

By the transpiration stream, in the xylem.The xylem is the tube in the plant in which water and solutes are transported from the plant roots to the stem and leaves. The xylem allows capillary action, which c...
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Answered by Rachel K. • Biology tutor
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Write 3a - a x 4a + 2a in its simplest form.

= 5a - 4a^2The rules of BODMAS (brackets, Orders, Division, Addition, Subtraction) applies. Times the "a" with "-4a" first, forming 4a squared (4a^2). Then group the "3a" and &q...
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Answered by Rachel K. • Maths tutor
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How to approach a GCSE English Literature essay. Example question: ‘How is Prospero’s sense of justice presented in Shakespeare’s ‘The Tempest’?

Firstly, you must read the question carefully and thoroughly. Highlight all the key terms. It doesn’t matter how brilliant your essay is- if it doesn’t directly answer the question in front of you, you will ...
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How do I find the roots of a quadratic?

e.g. given x^2 +3x -8 = 0using the quadratic formulayou find x = (-b +- sqrt(b^2 -4ac))/2ayou then find one root using the plus instead of plus minus sign, and the other root using the minus instead of plus ...
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Answered by Tutor382317 D. • Maths tutor
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