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OpenStudy (anonymous):
Is this correct ? Simplify: (2x - 3)(x2 - 4x - 6) 2x3 - 11x2 - 18
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Directrix (directrix):
No but close. Look for a sign error.
OpenStudy (anonymous):
2x3 - 11x2 + 18
Directrix (directrix):
2x^3 - 11x^2 + 18 is what I got. Same as yours.
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