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Emily778
 one year ago
Best ResponseYou've already chosen the best response.0by adding them both together.

dvada191
 one year ago
Best ResponseYou've already chosen the best response.0it has imaginary roots

dvada191
 one year ago
Best ResponseYou've already chosen the best response.0\[x=0.25\pm 0.968i\]

phi
 one year ago
Best ResponseYou've already chosen the best response.2For this problem, you should use the quadratic formula see http://www.khanacademy.org/math/trigonometry/polynomial_and_rational/quad_formula_tutorial/v/usingthequadraticformula for how to do it. You will get a minus number inside a square root, which means a complex number.

Emily778
 one year ago
Best ResponseYou've already chosen the best response.0isn't the answer x=1+isqrt15/2?

phi
 one year ago
Best ResponseYou've already chosen the best response.2almost, the bottom should be 2*a = 4 \[ x= \frac{1 ± \sqrt{15} \ i}{4} \]
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