Quadratic Functions, Equations and Inequalities

Quadratic Functions, Equations and Inequalities

Secondary 2

Use an identity to expand.

  1. \((2x-5)^2\)

  2. \((3a-2b)^2\)

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Answer:(a) \(4x^2-20x+25\). (b) \(9a^2-12ab+4b^2\).

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