Answer
$(6s-5)^{2}$
Work Step by Step
Given the polynomial
$(6s)^{2}$ - 60s + $(5)^{2}$
We see that the polynomial has the first and last term squared and the middle term is -2 times the first and last term. Thus it follows the rule of
$a^{2}$-2ab+$b^{2}$=$(a-b)^{2}$
In this polynomial a= 6s and b=5
$(6s)^{2}$ - 2(6s)(5) + $(5)^{2}$ = $(6s-5)^{2}$
