16^(1+㏒₄5) + 4^(1/2㏒₂3+3㏒₈5) = 415
1) 16^(1+㏒₄5)=16¹* 16^(㏒₄5)=16*4^(2㏒₄5) =16*4^(㏒₄5²)=16*5²=16*25=400
2) 4^(1/2㏒₂3+3㏒₈5) =2^(㏒₂3+3㏒₂³5) = 2^(㏒₂3+3*1/3㏒₂5) =2^(㏒₂3*5) =15
3) 400 +15=415
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72*(49^(1/2㏒₇9 -㏒₇6 ) + 5^(-㏒√₅ 4)) = 112,5
1) 49^(1/2㏒₇9 -㏒₇6 ) = 7^(㏒₇9 -㏒₇6)=7^(㏒₇9/ 6) = 9/6
2) 5^(-㏒√₅ 4) =5^(-2㏒₅ 4)=5^(㏒₅ 4⁻²) =4⁻²=1/16
3) 72*(9/6 + 1/16) = 108+4,5=112,5