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What is meant by 'the degree of a polynomial'?

The degree of a polynomial is the highest degree of the polynomials in your equation. For example, if you had (x^4 + 3x^2 + 5x), then the degree of the polynomial would be 4, as the largest polynomial in tha...
EH
Answered by Ellen H. • Maths tutor
5260 Views

How do you complete the square? example: x^2 + 8x + 13=0

the method to complete the square is as follows; -take the constant (13) away from both sides of the equation leaving x and x^2 terms only on one side of the equation: x^2+8x=-13 -Add half of the value of th...
JM
Answered by John-Felipe M. • Maths tutor
5522 Views

I am getting stuck on how to solve Simultaneous Equations, can you explain how to do this?

I always find with simultaneous equations that it is first important to remember what you are actually trying to do- to work out the values of x and y given what you know about them. So lets use this example...
CS
Answered by Chris S. • Maths tutor
4972 Views

If the area of a circle is 9pi cm^2, then what is the radius of this circle?

The equation of the area of a circle is A = pi*(r^2) Therefore seeing as we have got the area we must work backwards to be able to answer this question. First we shall start off with substituting into the eq...
TT
Answered by Tamara T. • Maths tutor
13430 Views

Expand and simplify: (2x+3)(x-8)

For this kind of question, the FOIL method can be used. You start by multiplying the FIRST aspects of both brackets, in this case giving 2x². Then you do the same with the OUTERS, the last elements in each b...
GC
Answered by Georgia C. • Maths tutor
17562 Views