order of operations pemdas parentahsees exponents mulitply or divide add or subtract
for parenthasees, work inside to out, left to right
so
first one is (2-6) which is equal to -4 next parenthaees is (8/4) which is 2 now we got [5(-4)+3(2)^2]^2 exponent 2^2=4 now we got [5(-4)+3(4)]^2 mulitply 5(-4)=-20 3(4)=12 now we got [-20+12]^2 simplify -20+12=-8