Edexcel IGCSE Maths 复习笔记 2.5.2 Rearranging Formulae - Harder

SIR! GROF GROBLET FIND ANSWER!

• This is a mnemonic (way of remembering something) developed to deal with everything including roots and powers (for a simpler version see the previous set of notes) and can also be used for solving equations…

SIR! – Squares, Indices, Roots

1. SIR! – Squares, Indices, Roots (can be used at any point)
2. GROF – Get Rid Of Fractions
3. GROB – Get Rid Of Brackets
4. LET – Lump Everything Together (or Let’s Examine Terms)
5. FIN – Factorise if Necessary
6. D – DivideANSWER!

Worked Example

转载自savemyexam

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