Solve x^2+2x-4, leaving your answer in the simplist surd form. (4marks)
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Simplist surd form means use Quadratic equation
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Write out Quadratic equation
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Write out value of a, b and c
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Fit these values into equation
Now the maths starts. Area's where students are likely to make mistakes are with use of signs (+ or -) and with simplifying surd.
DR
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