Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

for what value of (x) does (3^{2x} = 9^{3x-4})? - 1 - 2 - 3 - 4

Question

for what value of (x) does (3^{2x} = 9^{3x-4})?

  • 1
  • 2
  • 3
  • 4

Explanation:

⚡ Using what you learned: Solving Exponential Equations

Step 1: Express with a common base

$$ 3^{2x} = (3^2)^{3x-4} $$
$$ 3^{2x} = 3^{2(3x-4)} $$

Step 2: Equate exponents and solve

$$ 2x = 2(3x-4) $$
$$ 2x = 6x - 8 $$
$$ -4x = -8 $$
$$ x = 2 $$

Answer:

2