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Simplify the following 7 times the square root of 54 - 2 times the square root of 24

User Binarez
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2 Answers

3 votes

Final answer:

To simplify 7√54 - 2√24, we simplify the square roots first and then combine like terms.

Step-by-step explanation:

To simplify the expression 7√54 - 2√24, we need to simplify the square roots first. We can simplify √54 as 3√6, since 54 can be factored into 9 and 6. Similarly, we can simplify √24 as 2√6, since 24 can be factored into 4 and 6.

Now, we can substitute these simplified square roots back into the expression, giving us 7(3√6) - 2(2√6). Multiplying the coefficients and combining like terms, we get 21√6 - 4√6.

Finally, we can combine the terms with the common square root, resulting in (21 - 4)√6 = 17√6.

User Lansana Camara
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8.2k points
1 vote
The first step for solving this problem is to simplify the radical
7
√(54 - 2) x 2√6
Calculate the product
14
√((54 - 2) X 6)
Subtract the numbers
14
√(56 x 6)
Simplify the radical
14 x 2
√(13 x 6)
Multiply the numbers
14 x 2√78
Finally,, calculate the product for your final answer
28√78
Let me know if you have any further questions
:)
User Mark Green
by
7.6k points

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