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Simplify 27\sqrt{-27}. \newlineIf the answer is radical use 5\sqrt{5} to denote 5\sqrt{5} (use the correct radicand in the problem) \newlineIf the answer is complex use ii.

Full solution

Q. Simplify 27\sqrt{-27}. \newlineIf the answer is radical use 5\sqrt{5} to denote 5\sqrt{5} (use the correct radicand in the problem) \newlineIf the answer is complex use ii.
  1. Identify Number and Sign: Identify the number inside the square root and its sign.\newlineThe number inside the square root is 27-27, which is a negative number.
  2. Use Imaginary Unit: Recognize that the square root of a negative number involves the imaginary unit ii. The square root of a negative number is not a real number. It can be expressed using the imaginary unit ii, where ii is defined as 1\sqrt{-1}.
  3. Factorize 27-27: Factor 27-27 into 1-1 and 2727 to separate the negative sign from the positive part.\newline27-27 can be written as (1)×27(-1) \times 27.
  4. Apply Square Root Separately: Apply the square root to both factors separately. 27\sqrt{-27} can be written as 1×27\sqrt{-1} \times \sqrt{27}.
  5. Simplify 1\sqrt{-1}: Simplify the square root of 1-1 to ii.\newline1\sqrt{-1} is equal to ii.
  6. Simplify 27\sqrt{27}: Simplify the square root of 2727.2727 is 333^3, so 27\sqrt{27} is 32×3\sqrt{3^2 \times 3} which simplifies to 3×33 \times \sqrt{3}.
  7. Combine Results: Combine the results from Step 55 and Step 66.\newlineThe simplified form of 27\sqrt{-27} is i×3×3i \times 3 \times \sqrt{3}.