Question

a)[(2 la puterea 2 - 3) x 7 + 7 la puterea 2 ]: 2 la puterea 3
B)[ 2017 la puterea 0 + (3 la puterea 2) totul la 20 : (3 la puterea 13) totul la 3 ] c)30 :8 la 20
5x{5x[5x(5 la puterea 2 - 3 la puterea 2)- 4 la puterea 2]-15 la puterea 2} :19-5 la puterea 2.

Answer 1

Răspuns:

a)[(4-3)×7+49]÷8=1×7+49=56÷8=7

b)1+3^40÷3^39=1+3=4

c) nu inteleg prea bn exercitiul, verifica daca e scris corect

Answer 2

Răspuns:

[(2²-3)×7+7²]:2³=

=[(4-3)×7+49]:8=

=(1×7+49):8=

=(7+49):8=

=56:8=

=7

2017⁰+(3²)²⁰:(3¹³)³=

=1+3⁴⁰:3³⁹=

=1+3¹=

=4

5×{5×[5×(5²-3²)-4²]-15²}:19-5²=

=5×{5×[5×(25-9)-16]-225}:19-25=

=5×[5×(5×16-16)-225]:19-25=

=5×[5×(80-16)-225]:19-25=

=5×(5×64-225):19-25=

=5×(320-225):19-25

=5×95:19-25=

=5×5-25=

=0