Find the value of k for which the roots of the quadratic equation 2x^2+kx+8=0,will have equal value

Question

Find the value of k for which the roots of the quadratic equation 2x^2+kx+8=0,will have equal value​

Eva · Answer

Answer:   question_answer Answers(2)  ∴k = ± 8. If the quadratic equation is of the form ax2 + bx + c has equal roots then its discriminant is equal to zero. ∴ k = ± 8.

Sarah

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v
Find the polynomial with rational coefficients
and whose roots are

ii) 1+2i, 4,2

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