Algebra

(changing the subject, complex rearranging, expanding brackets, factorising brackets,

Changing the subject

T= 3𝑥 + 2 - ‘T’ is the subject in this equation because it' sits by itself on one side

Complex rearranging

• Move all the terms containing the subject to one side of the equation

• Then factorise

Expanding brackets

• Multiply the (immediate) outer number with the contents of the brackets

Double (or triple) brackets

• Use one bracket to multiply the other bracket

• (T) Choose 2 brackets and multiply them, then multiply the remaining brackets

Factorising quadratics

• Make an X

• Place 2 multiples of the 𝑥 value on the left side of the X

• Place 2 multiples of the factor with no 𝑥’s on the right side

• The top row are multiplied together and the bottom row are multiplied together

• This should make the other factor when added together

• The top row creates 1 bracket and the bottom the other