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Algebraic Techniques, SM-Bank 123

Use the distributive law to expand the expression \(9x(x-2y)\).  (2 marks)

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\(9x^2-18xy\)

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\(9x(x-2y)\) \(=9x\times x-9x\times 2y\)
  \(=9x^2-18xy\)

Filed Under: Expand and Factorise Tagged With: num-title-ct-core, smc-4696-10-Expand

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