Can You Solve This Exponential Equation in 30 Seconds

Can You Solve This Exponential Equation in 30 Seconds

Unlock the secret to solving the tricky exponential equation 2^x + 2^(1-x) = 3. While it might look complex, this problem elegantly transforms into a simple quadratic equation with a clever substitution. This step-by-step tutorial will guide you through the entire process, making it easy for anyone to understand. In this video, we'll cover: Simplifying the Expression: Using the fundamental laws of exponents to rewrite the problem. The Substitution Method: Introducing a new variable to reveal the hidden quadratic structure. Solving the Quadratic Equation: Factoring the equation to find two possible solutions. Back-Substitution: Plugging the values back in to find the final solutions for x. Graphical Verification: We'll plot the functions on a graph to visually confirm our answers at the intersection points. Whether you're a student tackling pre-calculus or algebra, or just someone who loves a good math challenge, this video will sharpen your problem-solving skills. Watch how a seemingly difficult exponential problem breaks down into simple, manageable steps! Don't forget to like, subscribe, and hit the bell for more mental math challenges! Timestamps: 00:00 - The Problem 00:16 - Step 1: Simplify the Expression 00:27 - Applying the Laws of Exponents 01:11 - Step 2: Introduce a Substitution 01:51 - Step 3: Solve the Quadratic Equation 02:28 - Factoring the Quadratic 03:01 - Finding the Solutions for y 03:33 - Step 4: Back-Substitute to Find x 03:52 - Case 1: Solving for x when y = 1 04:26 - Case 2: Solving for x when y = 2 04:51 - Visual Verification with a Graph 05:43 - Conclusion