How do you complete the square for the question x^2 + 6x - 10 ?
- the x squared is counted as A, the 6x is counted as B and -10 is C2) you halve the B term so in this case it would be 3x from the 6x and write it with an x in a bracket squared e.g. (x+3)^23) then you square the new B term which you have just created and minus it from the new equation you are forming e.g. (x+3)^2 -94) you then add the C term to the end of the new expression and add the two last terms together e.g. (x+3)^2 -19
AS
Related Maths GCSE answers
All answers ▸In a triangle ABC where angle CAB = 90 and angle ABC = 40 and the hypotenuse = 20cm, what is the length CA? Then find the total perimeter of the triangle.
The price of a pencil grows by 1%. What is the final crice if the initial price was £1?
Line L goes through point (2,13) and is perpendicular to the line y = 4x-5. Find the equation of line L.
Find the co-ordinates where the curve y= 2x^2 + 7x + 3 crosses the x axis