Question 614766
First of all, {{{(root(1976, 2a+b))^1976}}} is not an equation. There is no equals sign. It is an expression.<br>
This problem a quite simple once you understand what
{{{root(1976, 2a+b)}}}
represents. It represents "the expression you would raise to the 1976th power to get 2a+b as the result". And look at what is happening to it. It is being raised to the 1976th power! So, by definition:
{{{(root(1976, 2a+b))^1976 = 2a + b}}}