Canada | A Nice Algebra Problem | Math Olympiad

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Find the value of x?
How to solve 9^x+1 - 9^x-1 = 20
In this video, we'll show you How to Solve Math Olympiad Question A Nice Exponential Equation 9^x+1 - 9^x-1 = 20 in a clear , fast and easy way. Whether you are a student learning basics or a professtional looking to improve your skills, this video is for you. By the end of this video, you'll have a solid understanding of how to solve math olympiad exponential equations and be able to apply these skills to a variety of problems.
#matholympiad #maths #math #algebra

[@matheducare]

Nice math.
It improve skill.

[@SALogics]

Very nice! ❤

[@dblogp]

Greetings, excellent videos, but I have a question: What application do you use for classes?

[@ChavoMysterio]

9^(n+1)-9^(n-1)=20
9(9ⁿ)-[(9ⁿ)/9]=20
81(9ⁿ)-9ⁿ=180
80(9ⁿ)=180
9ⁿ=2.25
3²ⁿ=1.5²
2n=log_3(1.5²)
2n=2[log_3(1.5)]
n=log_3(1.5) ❤

[@SALogics]

Very nice! ❤

[@jamesharmon4994]

By observation, x is greater than 0 and less than 1.

[@SALogics]

Very nice! ❤

[@jamesharmon4994]

@@SALogics Upon further observation, between 0 and 1/2. At one half, it becomes 27 - (1/3), which is greater than 20.