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Emily778
 2 years ago
WHAT IS THE SOLUTION to 2x^2+x+2=0?
Emily778
 2 years ago
WHAT IS THE SOLUTION to 2x^2+x+2=0?

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

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

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

phi
 2 years 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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