Algebra 3
2 marks · NormalShow, by expanding , how the general quadratic is formed. Write the resulting expression.
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x^2 + (a+b)x + ab
Common mistakes: Omitting ab term; sign or like term error
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Marking points
M1 · 1 mark · Expands (x+a)(x+b) using distributive property
A1 · 1 mark · Collects like terms and writes as x^2 + (a+b)x + ab
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