Simplify 80x3y2−−−−−−√

(1 point)
Responses

5xy4x−−√
5 x y square root of 4 x

5x2y24x−−√
5 x squared y squared square root of 4 x

4xy5x−−√
4 x y square root of 5 x

4x2y25x−−√
4 x squared y squared square root of 5 x

1 answer

To simplify the expression \( \sqrt{80x^3y^2} \), we can break it down step by step.

  1. Factor 80:
    \( 80 = 16 \times 5 = 4^2 \times 5 \)

  2. Rewrite the expression: \[ \sqrt{80x^3y^2} = \sqrt{16 \cdot 5 \cdot x^3 \cdot y^2} \]

  3. Apply the square root to each factor: \[ \sqrt{16} \cdot \sqrt{5} \cdot \sqrt{x^3} \cdot \sqrt{y^2} \]

  4. Calculate the square roots:

    • \( \sqrt{16} = 4 \)
    • \( \sqrt{x^3} = \sqrt{x^2 \cdot x} = x \sqrt{x} \)
    • \( \sqrt{y^2} = y \)
  5. Combine the results: \[ 4 \cdot y \cdot x \sqrt{x} \cdot \sqrt{5} = 4xy \sqrt{5x} \]

Thus, the simplified form of \( \sqrt{80x^3y^2} \) is: \[ 4xy\sqrt{5x} \]

So, the correct option is: 4x²y²√5x.

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