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Maths
GCSE

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
14917 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
6568 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
6025 Views

Can you derive the Quadratic Formula?

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