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All 8 lessons in Manipulating Expressions 2

Builds on: A2

  1. 1. Expanding Brackets: the Area Model

    Use the distributive law and the area model to expand a single bracket, and test an expansion with a number.

  2. 2. Expanding with Negative Numbers

    Expand brackets that have subtraction inside, a negative number outside, or both, and find the slip in a wrong expansion.

  3. 3. Expanding and Simplifying Several Brackets

    Expand more than one bracket, subtract a bracket, handle loose terms, and decide whether two expressions are equal.

  4. 4. Letters and Fractions Outside the Bracket

    Expand brackets with a letter, a number and a letter, or a fraction outside, and collect like terms.

  5. 5. Factorising: the Reverse of Expanding

    Find the highest common factor, factorise two-term expressions fully, check by expanding, and use factorising to find a side from an area.

  6. 6. Factorising with Letters, and Dividing Expressions

    Factorise with letter and number-and-letter common factors, divide expressions by cancelling, and decide when cancelling is allowed.

  7. 7. Multiplying Two Brackets

    Multiply two brackets with a grid, including negatives, numbers in front, squares and the sum-and-product pattern.

  8. 8. Special Products and Factorising Quadratics

    Expand and factorise a difference of two squares, factorise x squared plus bx plus c, and combine the methods.

Unit code A3