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Fidn the solutions to the quadratic equation: x^2 - 16 = 0

Solve by adding 16 to both sides of the equation yielding: x^2 = 16. Then take the square root of both sides (remembering that taking the square root gives us a positive and a negative answer), giving us x =...
PD
Answered by Paul D. • Maths tutor
12564 Views

Integrate by parts the following function: ln(x)/x^3

Let integrate be denoted by the letter I. For instance I(f) is the integration of a function f . Then Integration by parts states that I(u v') = uv - I(u' v), where u,v are function with u', v' their respect...
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Answered by Paul D. • Maths tutor
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A graph is sketched with the equation x^2+4x-5. Find the minimum point of this graph.

Okay so the first thing we can identify is that it is a quadratic, hence the x 2 at the beginning. From this we can now start to answer the question. To calculate the minimum point we must " complete th...
HS
Answered by Harry S. • Maths tutor
5135 Views

For the curve C with equation y = x4 – 8x2 + 3. Find dy/dx

dy/dx= 4x 3 _ 16x
EP
Answered by Edward P. • Maths tutor
4078 Views

Richard wants to find out how often people buy crisps, a) name two things that are wrong with his survey question and b) create a better one

This is Richard's question on a survey: How often do you buy crisps? Often [ ] Sometimes [ ] Never [_] (a) Write down two things that are wrong with this survey question If you are writing a survey you shoul...
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Answered by Gemma W. • Maths tutor
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