Created by StemPy LabOne root of the quadratic equation is twice the other root. Both roots are real. What is the value of the real number ?
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← Let w = (7 + i)/(3 + 4i). First write w in the form a + ib. The number w⁸ then turns out to be a real number. What is the value of w⁸?For which real values of k does the quadratic equation x² + 2(k - 1)x + (k + 5) = 0 have two equal roots? Choose the option that lists all such values and no others. →
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