-2(6-10n)2=10(2n-6)

Solution for -2(6-10n)2=10(2n-6) equation:

-2(6-10n)2=10(2n-6)

We simplify the equation to the form, which is simple to understand 
-2(6-10n)2=10(2n-6)

Reorder the terms in parentheses
+(-12+20n)*2=10*(2n-6)

Reorder the terms in parentheses
+(-24+40n)=10*(2n-6)

Remove unnecessary parentheses
-24+40n=+10+*(+2n-6+)

Reorder the terms in parentheses
-24+40n=+(+20n-60)

Remove unnecessary parentheses
-24+40n=+20n-60

We move all terms containing n to the left and all other terms to the right. 
+40n-20n=-60+24

We simplify left and right side of the equation. 
+20n=-36

We divide both sides of the equation by 20 to get n. 
n=-1.8