Is the equation (8–√4)−24⋅(8–√)16=8−48 true or false? Select the response that correctly answers the question and provides the appropriate justification

1 answer

To evaluate the equation \((8 - \sqrt{4}) - 24 \cdot (8 - \sqrt{16}) = 8 - 48\), let's simplify both sides step by step.

  1. Calculate \(\sqrt{4}\) and \(\sqrt{16}\):

    • \(\sqrt{4} = 2\)
    • \(\sqrt{16} = 4\)
  2. Substitute these values back into the equation: \[(8 - 2) - 24 \cdot (8 - 4) = 8 - 48\]

  3. Simplify the left side:

    • \(8 - 2 = 6\)
    • \(8 - 4 = 4\)
    • So, \(24 \cdot 4 = 96\)

    Now, substitute back in: \[6 - 96\]

  4. Continue to simplify: \[6 - 96 = -90\]

  5. Now simplify the right side: \[8 - 48 = -40\]

  6. Put it all together: We now have: \[-90 \text{ (left side)} \quad \text{and} \quad -40 \text{ (right side)}\]

Since \(-90 \neq -40\), the equation is false.

Final answer: False. The left side equals \(-90\) whereas the right side equals \(-40\).