2^100:[2^50×2^48+(2^10×2^15)^5 : 2^17+(5^76 : 5^75 -3)^90×2^8+2^98] =
= 2^100:[2^98+(2^25)^5:2^17+(5-3)^90×2^8+2^98]=
= 2^100:[2^98+2^125:2^17+2^90×2^8+2^98]
= 2^100:[2^98+2^108+2^98+2^98) =
= 2^100:2^98(1 + 2^10 + 1 + 1) =
= 2^2 × (3+2^10) =
= 4 × 3 + 4 ×2^10 =
= 12 + 2^2×2^10 =
= 12 + 2^12