Math

Question Find the expression equivalent to 9a1/2b14c3/29 a^{1 / 2} b^{14} c^{3 / 2}. Options: A) 3ab28c3\sqrt{3 a b^{28} c^{3}}, B) 3ab7c3\sqrt{3 a b^{7} c^{3}}, C) 81ab28c3\sqrt{81 a b^{28} c^{3}}, D) 81ab7c3\sqrt{81 a b^{7} c^{3}}.

Studdy Solution

STEP 1

Assumptions
1. We are given the expression 9a1/2b14c3/29 a^{1 / 2} b^{14} c^{3 / 2}.
2. We are looking for an equivalent expression among the provided options (A, B, C, D).
3. We need to manipulate the given expression to match one of the options.

STEP 2

First, we need to recognize that the given expression can be rewritten by breaking down the number 9 into a square of a number, since we are looking for an expression under a square root.
9=329 = 3^2

STEP 3

Rewrite the given expression using the square of 3.
9a1/2b14c3/2=(32)a1/2b14c3/29 a^{1 / 2} b^{14} c^{3 / 2} = (3^2) a^{1 / 2} b^{14} c^{3 / 2}

STEP 4

Now, we can express the entire expression as a square root, since 323^2 is under the square root as well.
9a1/2b14c3/2=(32)2ab28c39 a^{1 / 2} b^{14} c^{3 / 2} = \sqrt{(3^2)^2 a b^{28} c^3}

STEP 5

Simplify the expression inside the square root by recognizing that (32)2=34(3^2)^2 = 3^4.
(32)2ab28c3=34ab28c3\sqrt{(3^2)^2 a b^{28} c^3} = \sqrt{3^4 a b^{28} c^3}

STEP 6

Now, we can simplify 343^4 under the square root, since 34=32\sqrt{3^4} = 3^2.
34ab28c3=(32)2ab28c3\sqrt{3^4 a b^{28} c^3} = \sqrt{(3^2)^2 a b^{28} c^3}

STEP 7

Recognize that we can take 323^2 out of the square root, since it is a perfect square.
(32)2ab28c3=32ab28c3\sqrt{(3^2)^2 a b^{28} c^3} = 3^2 \sqrt{a b^{28} c^3}

STEP 8

Since 32=93^2 = 9, we can rewrite the expression as:
32ab28c3=9ab28c33^2 \sqrt{a b^{28} c^3} = 9 \sqrt{a b^{28} c^3}

STEP 9

Now, we compare the expression we have derived with the options given:
9ab28c39 \sqrt{a b^{28} c^3}
We can see that this matches option C, which is:
81ab28c3\sqrt{81 a b^{28} c^{3}}

STEP 10

Therefore, the equivalent expression to 9a1/2b14c3/29 a^{1 / 2} b^{14} c^{3 / 2} is:
81ab28c3\sqrt{81 a b^{28} c^{3}}
The correct answer is option C.

Was this helpful?

Studdy solves anything!

banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ParentsInfluencer programContactPolicyTerms
TwitterInstagramFacebookTikTokDiscord