Question

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Answer 1

Answer:

$-2x\sqrt{y}.$

Step-by-step explanation:

1. Write the expression.

$\sqrt{x^2y} -3\sqrt{4x^2y}+\sqrt{9x^2y}$

2. Bring the x values out of the square root by taking the square root of them.

$x\sqrt{y} -3(2x)\sqrt{y}+3x\sqrt{y}$

3. Multiply.

$x\sqrt{y} -6x\sqrt{y}+3x\sqrt{y}$

4. Factorize and simplify.

$(x-6x+3x)(\sqrt{y})\\ \\(-2x)(\sqrt{y})\\ \\-2x\sqrt{y}$