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Free online tutorials below:

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Previous Years content:

fractions, decimals, percentages, negative numbers powers and more
Solving equations
graphing straight lines
geometry

Index Laws:

Khan Academy Videos:
They call indices "exponents" in the US so this is the word they use in the videos.
To practice the material you learn on these videos, click on the green practice this concept button in the top right hand corner of the screen.
all the index law videos are here

online practice with first 3 laws
How to do fractions



Surds:

The following videos show teachers explaining how to do questions with surds.
They call surds "radicals" in the US so this is the word they use in the videos
Khan Academy Videos:

simplifying-surds
simplifying surds
simplifying-surd-expressions - addition and subtraction
adding and subtracting surds

Multiplying surds
Note: they use a dot instead of the multiply symbol in this video.

Expanding brackets with surds
how-to-rationalize-a-denominator
Rationalise the denominator

Rationalising the denominator using the conjugate

Quadratic Expressions:

Expanding expressions
Quadratic Expansion Box Method
Quadratic Expansion FOIL method
multiplying expressions
Finding common factors
Factoring and the Distributive Property
Factoring with common factors
Factoring and the Distributive Property part 2
Factorising using Difference of 2 squares (DOTS)
Factoring 15a - Difference of 2 Squares
Factoring 15b - Difference of 2 Squares part 2
Factorising quadratic trinomials (ax^2+bx+c)
Factoring by Grouping
Factorising quadratics using the ac method
Factoring Trinomials by Grouping
Solving a quadratic by completing the square


Quadratic Equations & Graphs:

Transforming y = x2
Transformations of parabolas
Solving equations
using Null Factor Law
Null factor law (a.k.a. the zero property factor)
Solving quadratic equations
Completing the square
Writing in turning point form
Completing the square part 1
Completing the square part 2
Completing the square - different approach
Solving quadratics by completing the square
Solving quadratics by completing the square
Quadratic formula
and discriminant
Using the quadratic formula
The discriminant
The discriminant
Sketching
parabolas
The vertex (turning point) and axis of symmetry
Finding the equation of a parabola
Given turning point and one point