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In Course: GCSE Mathematics: Higher Tier (9-1)

GCSE Maths: The Quadratic Formula

Learn the quadratic formula, understand its components like the discriminant, and know how to identify the values of a, b, and c from any quadratic equation. This deck prepares you to substitute values correctly and solve equations.

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Deck Contents

33 Cards
Lesson#1
Welcome to this deck on the quadratic formula. Sometimes, you'll come across a quadratic equation that's difficult or impossible to solve by factorising. The quadratic formula is a universal tool that can solve any quadratic equation. It might look a bit intimidating at first, but think of it as a reliable recipe: you just need to know the ingredients and follow the steps.
Lesson#2
It's important to know that for GCSE Maths, the quadratic formula is usually provided on the exam formula sheet. So, your main goal isn't to memorise it perfectly, but to understand what each part means and how to use it correctly and confidently.
Lesson#3
To use the formula, the quadratic equation must first be in its standard form: a x squared, plus b x, plus c, equals zero. The letters a, b, and c in the formula are the coefficients from this standard form.
Quiz#4
Before you can use the quadratic formula, what must the equation be equal to?

zero

Quiz#5
In the standard form of a quadratic equation, 'a x squared plus b x plus c equals zero', what is 'a' the coefficient of?

x squared

Quiz#6
In the standard form of a quadratic equation, 'a x squared plus b x plus c equals zero', what is 'b' the coefficient of?

x

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