Rearranging Formulas (AQA GCSE Maths): Flashcards
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Rearranging formulas definition
Rearranging formulas definition
Changing the structure of an equation to make a specific variable the subject
Key principle of rearranging
Key principle of rearranging
Get the variable completely on its own on one side
Step 1: How to eliminate square roots
Step 1: How to eliminate square roots
Square both sides
Step 2: How to remove fractions
Step 2: How to remove fractions
Multiply every term by the denominator
Step 3: Property for expanding brackets
Step 3: Property for expanding brackets
Distributive property
Step 4: What is collecting like terms
Step 4: What is collecting like terms
Gather subject terms on one side, other terms on opposite side
Step 6: Isolating variable method
Step 6: Isolating variable method
Divide both sides by the coefficient
Step 7: Symbol when taking square root
Step 7: Symbol when taking square root
symbol
Subject appears twice: what technique
Subject appears twice: what technique
Factoring techniques
Must use all 7 steps for every formula?
Must use all 7 steps for every formula?
No, skip steps that don't apply