Collecting Like terms (simplify)

Expanding brackets and simplifying:

Solving linear equations with x on both sides:

Week 20 (Jan 29th) Indices (rules of algebra)

Indices laws 1:

Fractional indices:

Log trick for solving indices problems:

Expanding double brackets:

Factorising

Factorising quadratics:

Solving quadratic equations by factorising

Solving quadratic equations with the formula

Sketching quadratic graphs by factorising and completing the square:

Solving simultaneous equations:

Simultaneous equations from word problems: