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Assuming 
x and 
y are both positive, write the following expression in simplest radical form.

6sqrt(54x^(7)y^(2))
Answer:

Assuming x x and y y are both positive, write the following expression in simplest radical form.\newline654x7y2 6 \sqrt{54 x^{7} y^{2}} \newlineAnswer:

Full solution

Q. Assuming x x and y y are both positive, write the following expression in simplest radical form.\newline654x7y2 6 \sqrt{54 x^{7} y^{2}} \newlineAnswer:
  1. Factorize 5454: We need to simplify the expression 654x7y26\sqrt{54x^{7}y^{2}}. Let's start by factoring the number 5454 into its prime factors and simplifying the expression inside the square root.\newline5454 can be factored into 2×272 \times 27, and 2727 is 333^3. So we can rewrite 5454 as 2×332 \times 3^3.
  2. Express factors separately: Now we can express the square root of each factor separately: 654x7y2=62×33×x7×y26\sqrt{54x^{7}y^{2}} = 6\sqrt{2 \times 3^{3} \times x^{7} \times y^{2}}.
  3. Take out perfect squares: We can take out the square root of any perfect squares from under the radical. Since 333^3 contains a perfect square, which is 323^2, and x7x^7 contains a perfect square, which is x6x^6, and y2y^2 is already a perfect square, we can simplify further:\newline62×33×x7×y2=6×3×x3×y×2×3×x.6\sqrt{2 \times 3^3 \times x^{7} \times y^{2}} = 6 \times 3 \times x^3 \times y \times \sqrt{2 \times 3 \times x}.
  4. Multiply constants and variables: Now we multiply the constants and the variables that are outside the square root: \newline6×3×x3×y=18x3y6 \times 3 \times x^3 \times y = 18x^3y.\newlineSo the expression becomes:\newline18x3y×2×3×x18x^3y \times \sqrt{2 \times 3 \times x}.
  5. Simplify expression inside square root: Finally, we can simplify the expression inside the square root by combining the constants: 2×3×x=6x\sqrt{2 \times 3 \times x} = \sqrt{6x}. So the entire expression simplifies to: 18x3y×6x18x^3y \times \sqrt{6x}.