Question

(x+2)^4 + 12 = 45 I need help for solving for x's smaller and larger value :)

Answer 1

\[\pm \sqrt[4]{33}-2\]

Answer 2

or \[\pm33^{1/4}-2\]

Answer 3

cinar, I did make a mistake, but you could have at least posted all your steps since you volunteered to post a solution.

Answer 4

\[(x+2)^{4}+12=45\]
\[(x+2)^{4}+12-12=45-12\]
\[(x+2)^{4}=33\]
\[((x+2)^{4})^{\frac{1}{4}}=33^{\frac{1}{4}}\]
\[x+2=\pm \sqrt[4]{33}\]
\[x=\pm \sqrt[4]{33}-2\]