Solving 3^x · 7^(x²) = 21 | Exponential Equations Made Easy!

In this video, we solve the exponential equation
3

⋅
7

2
=
21
3
x
⋅7
x
2

=21 step-by-step! 📈
We’ll break down how to approach equations where exponents involve both linear and quadratic terms, and use smart substitution to simplify.

✅ What you’ll learn:

How to simplify exponential expressions

Smart substitution tricks

Using logarithms to solve non-linear equations

Logical checking of roots

This is a great practice problem for anyone learning algebra, preparing for exams, or just enjoying math puzzles.

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