Algebra 5
3 marks · NormalExpand and simplify the expression:
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x^2+2x-8
Also accept: x^2+2x-8
Common mistakes: x^2+8x-8; x^2+2x+8
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Marking points
M1 · 1 mark · Multiply out both brackets using FOIL or distributive property.
M2 · 1 mark · Collect like terms to form a quadratic expression.
A1 · 1 mark · Final answer: (or equivalent simplified form).
Worked solution