Math Problem Statement

Solve n show the case 2

Solution

Let's focus on Case 2 of the equation 2x=8|2x| = 8:

Case 2: 2x=82x = -8

In this case, we solve for xx as follows:

  1. Start with the equation: 2x=82x = -8

  2. Solve for xx: x=82x = \frac{-8}{2} x=4x = -4

Verification:

To ensure that this solution is correct, let's substitute x=4x = -4 back into the original equation 2x3=5|2x| - 3 = 5:

  1. Calculate 2x2x: 2(4)=82(-4) = -8

  2. Find the absolute value: 2x=8=8|2x| = |-8| = 8

  3. Substitute into the original equation: 2x3=83=5|2x| - 3 = 8 - 3 = 5 This confirms that the left-hand side equals the right-hand side.

Thus, the solution x=4x = -4 is correct for Case 2.

Would you like to see more details or have any questions?

Here are five related questions to consider:

  1. How would the solution change if the equation were 3x3=5|3x| - 3 = 5?
  2. Can you explain why we must consider both positive and negative scenarios in absolute value equations?
  3. What if the equation were 2x3=5|2x| - 3 = -5? Would there be any solutions?
  4. How do you interpret the solutions x=4x = 4 and x=4x = -4 on a number line?
  5. How would you set up an equation if the original problem involved 2x+1=8|2x + 1| = 8?

Tip: Always check your solutions by substituting them back into the original equation to ensure they satisfy all conditions.

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Math Problem Analysis

Mathematical Concepts

Absolute Value Equations

Formulas

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Theorems

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Suitable Grade Level

Grades 9-12