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4 votes
What is the solution to the equation? 4√x-4 =3

A. -8 B. 16 C. 85 D. no solution

2 Answers

4 votes

Answer:

Explanation:

4√(x-4) = 3

√(x-4) = 3/4

Square both sides:

x - 4 = 9/16

x = 4 + 9/16

x = 4 9/16.

User Shevan
by
8.0k points
2 votes


{\qquad\qquad\huge\underline{{\sf Answer}}}

Here we go ~


\qquad \sf  \dashrightarrow \: \sqrt[4]{x - 4} = 3


\qquad \sf  \dashrightarrow \: x - 4 = (3) {}^(4)


\qquad \sf  \dashrightarrow \: x - 4 = 81


\qquad \sf  \dashrightarrow \: x = 81 + 4


\qquad \sf  \dashrightarrow \: x = 85

So, the correct choice is 85

User Heberda
by
8.1k points

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