Let's solve the first equation and see if both -6−6minus, 6 and 666 are possible values of ccc.
Hint #22 / 4
\begin{aligned} c^2&=36\\\\ \sqrt{c^2}&=\sqrt{36}&\\\\ c &=\pm 6 \end{aligned}
c
2
c
2
c
=36
=
36
=±6
Yes, both -6−6minus, 6 and 666 are possible values of ccc for the first equation!
Hint #33 / 4
Let's do the same for the second equation.
\begin{aligned} c^3&=216\\\\ \sqrt[\scriptstyle 3]{c^3}&=\sqrt[\scriptstyle 3]{216}&\\\\ c &=6 \end{aligned}
c
3
3
c
3
c
=216
=
3
216
=6
No, both -6−6minus, 6 and 666 are not possible values of ccc for the second equation.
Hint #44 / 4
The following equation has both -6−6minus, 6 and 666 as possible values of ccc:
c^2 = 36c
2
=36
