Looking for more on completing the square in a quadratic expression? Check out our National 5 Maths guide. Nat 5 Maths - Completing the square in a quadratic expression. revision-guideNat 5 Maths - ...
Removing brackets is to multiply the term outside the brackets by each term inside - also known as the distributive law. Use FOIL to remove a pair of brackets then simplify by collecting like terms.
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