Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2018-part-05 — 181 problems (EN–VI) Question 158

Math Olympiad Vault · MathNet 2018-part-05 — 181 problems (EN–VI)

Question 158

a) Solve the equations $9^{x} - 4 \cdot 5^{2x-3} = 25^{x-1} + 2 \cdot 3^{2x-3}$ and $\sqrt{x+1+\sqrt{x+1+\sqrt{x+3}}} = \sqrt{x+3}$.

b) Write the general form of the polynomial with leading coefficient 2 whose zeros are equal to the solutions of the equations from a).