QuestionAugust 27, 2025

Question 2(Multiple Choice Worth 1 points) (05.01 MC) Solve (sqrt (6))^8x=216^x-3 x=-9 x=-3 x=0 x=4

Question 2(Multiple Choice Worth 1 points) (05.01 MC) Solve (sqrt (6))^8x=216^x-3 x=-9 x=-3 x=0 x=4
Question 2(Multiple Choice Worth 1 points)
(05.01 MC)
Solve (sqrt (6))^8x=216^x-3
x=-9
x=-3
x=0
x=4

Solution
4.3(234 votes)

Answer

x = -9 Explanation 1. Simplify the equation Rewrite 216 as 6^{3}, so the equation becomes (\sqrt{6})^{8x} = (6^3)^{x-3}. 2. Convert square root to exponent Express \sqrt{6} as 6^{1/2}, thus (6^{1/2})^{8x} = 6^{3(x-3)}. 3. Apply power of a power rule Use **(a^m)^n = a^{mn}**: 6^{4x} = 6^{3x - 9}. 4. Equate exponents Since bases are equal, equate exponents: 4x = 3x - 9. 5. Solve for x Subtract 3x from both sides: x = -9.

Explanation

1. Simplify the equation<br /> Rewrite $216$ as $6^{3}$, so the equation becomes $(\sqrt{6})^{8x} = (6^3)^{x-3}$.<br />2. Convert square root to exponent<br /> Express $\sqrt{6}$ as $6^{1/2}$, thus $(6^{1/2})^{8x} = 6^{3(x-3)}$.<br />3. Apply power of a power rule<br /> Use **$(a^m)^n = a^{mn}$**: $6^{4x} = 6^{3x - 9}$.<br />4. Equate exponents<br /> Since bases are equal, equate exponents: $4x = 3x - 9$.<br />5. Solve for x<br /> Subtract $3x$ from both sides: $x = -9$.
Click to rate: