Answers

2014-05-15T21:42:43+08:00
F(x) = 2x² + 6x - 7 
f(x) = 2(x² + 3x) - 7 
f(x) = 2[(x + 3 / 2)² - 9 / 4] - 7 
f(x) = 2(x + 3 / 2)² - 9 / 2 - 7 
f(x) = 2(x + 3 / 2)² - 23 / 2


is this it ?
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