Question

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

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

Answer 1

Explanation:

4√(x-4) = 3

√(x-4) = 3/4

Square both sides:

x - 4 = 9/16

x = 4 + 9/16

x = 4 9/16.

Answer 2

`{\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