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Which choice is equivalent to the product below when x20?

√6x18x2
A. 6-3x
B. 6x√3
C. 6-18x
D. √108x2

1 Answer

4 votes

Final answer:

The equivalent expression for the product √6x^18x^2 when x > 0 is 6x√3, represented by Option B. We simplify the product by combining exponents and factoring out x^20 from the square root of 6 to obtain this result.

Step-by-step explanation:

The question is asking to find an equivalent expression for the product of √6x18 and x2 when x > 0. We can simplify the expression by recognizing that x18 can be represented as (x9)2, which is the square of x9. So, we have the square root of 6 multiplied by the square of x9 and then multiplied by x2:

  • √6 × x9 × x9 × x2

Since we are multiplying the same base (x), we can add the exponents (according to the rule for multiplying exponents):

  • x9+9+2 = x20

Therefore, the expression simplifies to √6 × x20, which is equivalent to:

  • 6 × (x10)2 = 6x20

The correct choice that represents this simplified expression is Option B. 6x√3, because when we factor out an x20 from √6, what remains inside the square root is 6, and the square root of 6 can be simplified to √3 × √2, which leaves us with x20 × √3 (since x20 × √2 is just x20).

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