Math  /  Algebra

Question3) 512k2\sqrt{512 k^{2}}

Studdy Solution

STEP 1

1. We are asked to simplify the expression 512k2\sqrt{512 k^{2}}.
2. The expression involves a square root of a product, which can be simplified by separating the square root of each factor.

STEP 2

1. Simplify the square root of the numerical factor 512.
2. Simplify the square root of the variable factor k2k^2.
3. Combine the simplified results.

STEP 3

Simplify the square root of 512. First, factor 512 into its prime factors:
512=29 512 = 2^9
Since 512 is a power of 2, we can simplify the square root:
512=29=29/2=24.5=24×2=162 \sqrt{512} = \sqrt{2^9} = 2^{9/2} = 2^{4.5} = 2^4 \times \sqrt{2} = 16\sqrt{2}

STEP 4

Simplify the square root of k2k^2:
k2=k \sqrt{k^2} = k
Assuming kk is non-negative, as we are dealing with real numbers.

STEP 5

Combine the results from the previous steps:
512k2=512×k2=162×k=16k2 \sqrt{512 k^2} = \sqrt{512} \times \sqrt{k^2} = 16\sqrt{2} \times k = 16k\sqrt{2}
The simplified expression is:
16k2 \boxed{16k\sqrt{2}}

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