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Maths
GCSE

When would I use the quadratic formula?

You would use the quadratic formula when trying to find the value of a variable such as x in a quadratic equation but it can not be successfully factorised with whole numbers. Treating the the equatio...

EO
Answered by Emily O. • Maths tutor
4707 Views

How Would I Factorise A Quadratic Equation?

Factorising is a way of 'converting' an equation into a form with brackets in order to make it more useful and easier to manipulate. It is the reverse of expan...

CG
Answered by Cameron G. • Maths tutor
4419 Views

How to expand brackets?

Expand 5(x - 4)

To expand the brackets, you must mutilpy the number outside the bracket by everything inside.

Step 1)  5 x x  =  5x

AC
Answered by Andy C. • Maths tutor
14340 Views

How to find the roots of a Quadratic Equation by Factorising?

Suppose you have a quadratic equation: x2 + 5x + 6

You are told it has TWO REAL ROOTS and you are t...

JF
Answered by Joshua F. • Maths tutor
6400 Views

How do I solve fractions with unknowns in the denominators?

To solve the equation: (5x+3)/(x) + x = 1, where (x) is the denominator, we have to convert the equation into an equation without any denominators.

To do this, we multiply each variable by (x)...

SA
Answered by Sophie A. • Maths tutor
5881 Views

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