Okay maybe im thinking too hard but im having a terrible time completing the square of this quadratic and finding standard form... -1.5x^2+255x+0
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Originally Posted by nikkaloo Okay maybe im thinking too hard but im having a terrible time completing the square of this quadratic ... -1.5x^2+255x+0 Hello, I can help you with completing the square: $\displaystyle -1.5x^2+255x+0=-1.5(x^2-170x)= -1.5\left(x^2-170x+\left(\frac{170}{2}\right)^2-85^2\right)$ $\displaystyle =-1.5((x-85)^2-85^2) = -1.5(x-85)^2+1.5 \cdot 85^2 = -1.5(x-85)^2+10837.5$
the form the quadratic is in after completing the square is the standard form. namely, the form: $\displaystyle y = a(x - h)^2 + k$ which is the form earboth's answer is in
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