class 10 math obtain all zero of polynomial f x is equal to 2 x to the power 4 + x cube minus 4 x square - 19 x minus 6 if two zeroes are -2 and -1
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(Remember to use both signs of the square root.) 4 ... Then, solving back for x, we have x = 3. 2 or - 5. This method is equivalent to ... the discriminant is negative, we have imaginary roots.
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