Q. Simplify the expression completely.−364−−9+216Answer:
Question Prompt: Question prompt: Simplify the expression completely.−364−−9+216
Simplify Square Root of 64: Simplify the square root of 64. The square root of 64 is 8 because 82=64. −364 becomes −3×8.
Calculate Product of −3 and 8: Calculate the product of −3 and 8.Multiplying −3 by 8 gives −24.−3×8=−24.
Simplify Square Root of −9: Simplify the square root of −9. The square root of −9 is not a real number; it is an imaginary number. The square root of 9 is 3, and since we are taking the square root of a negative number, we use the imaginary unit i. −9 becomes 3i.
Simplify Square Root of 16: Simplify the square root of 16.The square root of 16 is 4 because 42=16.216 becomes 2×4.
Calculate Product of 2 and 4: Calculate the product of 2 and 4.Multiplying 2 by 4 gives 8.2×4=8.
Combine Simplified Terms: Combine all the simplified terms.Combine −24 (from Step 2), 3i (from Step 3), and 8 (from Step 5).The expression becomes −24−3i+8.
Add −24 and 8: Add −24 and 8.Adding −24 and 8 gives −16.−24+8=−16.
Write Final Expression: Write the final simplified expression.The final expression is −16−3i.
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