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What are surds and how do I use them ?

Surds are irrational numbers, (numbers which cannot be expressed as fractions), and normally shown as a number instead a square root, but the number itself isn't a square. For example root 3 is a surd, wh...

Answered by Roly H. • Maths tutor

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How do I differentiate?

If we have the curve y=x³+3x²-7x+5, to differentiate it we firstly multiply x by its power, and then reduce the power by one.Therefore x³ will differentiate to 3x²

Answered by William H. • Maths tutor

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How do you solve the equation 3(6x + 2) = 10 + 4x?

Begin by expanding the brackets of the LHS:3(6x + 2) = 18x + 6 3 * 6x = 18 x and 3 *2 = 6The equation now reads:18x + 6 = 10 + 4xSubtract 4x from both sides14x + 6 = 10Subtract 6 from...

Answered by James T. • Maths tutor

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