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Revision Notes
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GCSE Maths
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Algebra
Algebra — GCSE Revision Notes
6 notes on Algebra for GCSE Maths.
Solving Linear Equations
The golden rule An equation is a balanced scale. Whatever you do to…
Expanding and Factorising
Expanding single brackets Multiply every term inside by the term…
Quadratic Equations
Standard form ax² + bx + c = 0 Method 1 — factorising x² + 5x + 6 = 0…
Simultaneous Equations
What they are Two equations, two unknowns. The solution is the pair…
Straight-Line Graphs (y = mx + c)
The equation of a straight line y = mx + c m = gradient (steepness /…
Sequences and the nth Term
Linear (arithmetic) sequences A fixed amount (the common difference,…
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