5

+10-15=30
5

=35
<span>

=7
</span>х=49
5√49+10-15=30
30=30

+1+7=4
<span>

=-4
</span>it is <span>no solution
</span>
I believe it is 60 inches
The third one, 2 to the power of 5 over 6
√2 * 3√2
convert from radical form to exponent form to solve for the same root
( x^m/n = n√x^m )
2^(1/2) * 2^(1/3)
2^{3/6} * 2^{2/6} - find common denominator (6)
6√(2^3) * 6√(2^2) - convert back to radical form
6√(2^3 * 2^2)- combine
6<span>√(</span>2^5)
then convert to exponential form again
~ 2^5/6 ~