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How to complete the square

Completing the square refers to the process of rewriting a general quadratic expression into the form of a(x+b) 2 + c .For example we are asked to complete the square for 2x 2 + 4x + 5. The best way to do th...
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Answered by Zitong Z. • Maths tutor
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How can you integrate ln(x) with respect to x?

We can use substitution for this one. Take y=ln(x) to be equal to y= 1 x ln(x)Set u=ln(x) and dv/dx=1Compute du/dx and v:du/dx=1/x and v=xUse given formula - ∫ udv/dx dx = uv - ∫ vdu/dx dx= xln(x) - ∫ x/x dx...
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Answered by Samuel H. • Maths tutor
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How to use direct object pronouns

I eat an apple every Thursday :Como una (manzana) todas las jueves - (La) como todas las jueves Can you give the book to Martin: Puedes dar el libro a Martin - Puedes dar(lo) a Martin
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Answered by Olivia B. • Spanish tutor
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What is the pythagoras theorem?

a 2 =b 2 +c 2
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Answered by Anwen F. • Maths tutor
3301 Views

Explain three criticisms of referendums

One criticism that is often heard about referendums is that it encourages voter fatigue. Voter fatigue is a term that describes when a voter gets apathetic towards voting due to feeling like they have been o...
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