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Let-the-two-roots-of-the-quadratic-equation-x-2-12x-k-0-is-2-Then-solve-for-and-k-or-I-will-force-you-to-solve-




Question Number 215164 by MathematicalUser2357 last updated on 30/Dec/24
Let the two roots of the quadratic equation x^2 −12x+k=0 is α, α^2 ,  Then solve for α and k or I will force you to solve
$$\mathrm{Let}\:\mathrm{the}\:\mathrm{two}\:\mathrm{roots}\:\mathrm{of}\:\mathrm{the}\:\mathrm{quadratic}\:\mathrm{equation}\:{x}^{\mathrm{2}} −\mathrm{12}{x}+{k}=\mathrm{0}\:\mathrm{is}\:\alpha,\:\alpha^{\mathrm{2}} , \\ $$$$\mathrm{Then}\:\mathrm{solve}\:\mathrm{for}\:\alpha\:\mathrm{and}\:{k}\:\mathrm{or}\:\mathrm{I}\:\mathrm{will}\:\mathrm{force}\:\mathrm{you}\:\mathrm{to}\:\mathrm{solve} \\ $$
Answered by A5T last updated on 30/Dec/24
α+α^2 =12⇒α=−4 or 3  ⇒k=α×α^2 =−64 or 27
$$\alpha+\alpha^{\mathrm{2}} =\mathrm{12}\Rightarrow\alpha=−\mathrm{4}\:\mathrm{or}\:\mathrm{3} \\ $$$$\Rightarrow\mathrm{k}=\alpha×\alpha^{\mathrm{2}} =−\mathrm{64}\:\mathrm{or}\:\mathrm{27} \\ $$

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