Search our library of Maths questions

Top answers

Maths

All levels

Expand and simplify (-2x+3)(x-6)

(-2x+3)(x-6)=

-2x^2+12x+3x-18=

-2x^2+15x-18

Answered by Beth C. • Maths tutor

4248 Views

Increase £190 by 25%

There are two ways to work out the answer to this question. The first way involves first working out 25% of £190 and then adding this to your original £190. To calculate 25% of £190 we multiply 190 by 0.2...

Answered by Juliet F. • Maths tutor

5167 Views

Use Simpson's rule with 5 ordinates (4 strips) to find an approximation to "integral between 1 and 3 of" 1/sqrt(1+x^3) dx giving your answer to three significant figures.

Just as a note before I start, some of the symbols I use here will be horribly confused, this won't be an issue with a whiteboard but doing maths in a text editor is not great so I've had to make do.

...

Answered by Dominic A. • Maths tutor

8729 Views

How do I solve these two equations simultaneously: 7x+y=1 and 2x^2 - y = 3

These types of questions can sometimes throw people off due to the quadratic nature of the second equation but don't fret; we'll use a method called substitution to find the answer!