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OpenStudy (anonymous):
Please Help!! There are options!! Find the vertex of the quadratic equation: y = 2x^2 + 12x − 4. (−3, 50) (3, 50) (−3, −22) (−3, −58)
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OpenStudy (precal):
use the vertex formula
OpenStudy (precal):
|dw:1357157052453:dw|x=-b/2a
OpenStudy (anonymous):
so -3
OpenStudy (precal):
|dw:1357157151762:dw|yes
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