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Maths
GCSE

How do you factorise a quadratic equation?

By looking at the equation you see it is made up of three components. The way to factorise it is to multiply the integer or constant at the end by the coefficient of the x 2 term, the number be...

SK
Answered by Sidhi K. • Maths tutor
2949 Views

Expand and simplify 9(x+3)-2(3x-4)

9(x+3)-2(3x-4)9x+27-6x+83x+35

KS
Answered by Kiran S. • Maths tutor
3338 Views

Expand the brackets (x-3)(x+4)

When dealing with questions to do with expanding brackets, you must multiply every term in one bracket with all the others in the second bracket. So for this question, we can see we have 4 terms

AA
Answered by Ameer A. • Maths tutor
5410 Views

Solve these simultaneous equations. 2x + y = 18 x - y = 6

With simultaneous equations there is more than one unknown. First we’ll get one unknown on its own so we rearrange the bottom equation to get x on its own. By adding y to each side of the equation this le...

LS
Answered by Lizzie S. • Maths tutor
5743 Views

Find the value of x: x^2-3x-3=1

To begin this question you need to bring all of the terms to one side, so the equation equals 0. It is easiest to do this by subtracting 1 from each side.x^2-3x-3-1=1-1x^2-3x-4=0Now we need to factorise t...

EH
Answered by Emma H. • Maths tutor
3367 Views

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