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What grade did you achieve?

I achieved an A in O level Mathematics.
RA
Answered by Rusab A. • Maths tutor
3926 Views

Using the quadratic equation, solve 3x^2+2x-15 to two decimal places.

The quadratic equation is x=(-b+-SQRT(b^2-4ac))/2a. In this instance, a = 3, b = 2, and c = 15. Simply putting the numbers in place of the letter counterpart, gives an answer of 1.93 and -2.59 to two decimal...
CF
Answered by Callum F. • Maths tutor
6127 Views

Solve the simultaneous equations: 3x +4y = 18, and 5x - 2y = 4

First of all, you would label the equations, so let's call 3x +4y = 18 equation A, and 5x - 2y = 4 equation B. Then you would try to find a way to eliminate one of the variables (either x or y). We can do th...
RS
Answered by Rob S. • Maths tutor
12424 Views

Solve the two simultaneous equations: 2y + x = 8 [A] and 1 + y = 2x [B]

I have labelled the two separate equations A and B so that it is easier to talk about them. There are two ways in which you can do these equations but I am going to explain the method using substitution. As ...
CD
Answered by Ciara D. • Maths tutor
8136 Views

Solve x^2 + x/2 =5

Although this may look more complicated than normal, this is just a normal qudratic equation. First by rearranging the equation we can get it into a simpler form, and then we can go about solving it. The fir...
HJ
Answered by Hannah J. • Maths tutor
6528 Views