Answer:
4x+1
Step-by-step explanation:
The area is 12x2 + 3x in
The length is 3x
Formula is A=L*B
12x2 + 3x=3x*B
Divide both side by 3x
12x2+3x divide by 3x=B
4x+1=B
The express for the width is 4x+1
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Answer:

Step-by-step explanation:
Given in the question an expression,

As we know that,
![x^{\frac{1}{4} }= \sqrt[4]{x}](https://tex.z-dn.net/?f=x%5E%7B%5Cfrac%7B1%7D%7B4%7D%20%7D%3D%20%5Csqrt%5B4%5D%7Bx%7D)
so
![\sqrt[4]{256x^{16} }](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B256x%5E%7B16%7D%20%7D)
it could also be written as

First to solve inner square root


Second outer square root
=
Answer:
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Step-by-step explanation:
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