Explicație pas cu pas:
a. 3⁴⁵:(3⁴⁴+3⁴⁴+3⁴⁴) + 2³⁰÷(2²⁹+2²⁹)
= 3⁴⁵:3⁴⁴×(1+1+1) +2³⁰÷2²⁹×(1+1)
= 3⁴⁵:(3⁴⁴×3) +2³⁰÷(2²⁹×2)
= 3⁴⁵:3⁴⁴⁺¹+2³⁰÷2²⁹⁺¹
= 3⁴⁵:3⁴⁵ + 2³⁰÷2³⁰
= 1 + 1
= 2
b. (2³⁸:2¹⁰+6²³:6¹³) ; [2¹⁰×3¹⁰ + (2¹⁴)²]
= (2³⁸⁻¹⁰+6²³⁻¹³) : [(2×3)¹⁰+2¹⁴˟²]
= (2²⁸+6¹⁰) : (6¹⁰+2²⁸)
= 1
