(4x-1)^3=343

2 min read Jun 16, 2024
(4x-1)^3=343

Solving the Equation (4x-1)³ = 343

This article will guide you through solving the equation (4x-1)³ = 343. We will break down the steps to find the value of 'x'.

Step 1: Simplify the equation

The equation (4x-1)³ = 343 can be simplified by taking the cube root of both sides.

  • Cube root of 343 is 7:
    • This is because 7 * 7 * 7 = 343.
  • Cube root of (4x-1)³ is (4x-1):
    • The cube root cancels out the cube.

Therefore, the simplified equation is: (4x-1) = 7

Step 2: Solve for 'x'

Now, we have a simple linear equation: (4x - 1) = 7

  1. Add 1 to both sides:
    • This gives us 4x = 8.
  2. Divide both sides by 4:
    • This gives us x = 2.

Conclusion

Therefore, the solution to the equation (4x-1)³ = 343 is x = 2.

You can verify this answer by substituting 'x' back into the original equation:

  • (4 * 2 - 1)³ = (8 - 1)³ = 7³ = 343.

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