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If r=9r = 9, what is 4r\sqrt{4r}?\newline_____

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Full solution

Q. If r=9r = 9, what is 4r\sqrt{4r}?\newline_____
  1. Plug in value of extit{r}: First, let's plug in the value of extit{r} into the expression. So we got extit{r} = 99, and we put it in extit{sqrt}(44 extit{r}).\newlineCalculation: extit{sqrt}(44 imes 99)
  2. Calculate inside square root: Now, we gotta multiply 44 by 99 to see what's inside the square root.\newlineCalculation: 36\sqrt{36}
  3. Find square root of 3636: Alright, the square root of 3636 is just 66, easy peasy.\newlineCalculation: 36=6\sqrt{36} = 6

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