Question

2. Efectuați:
a) 10². [4+5.3² - 25 +4³ (49-3²): 2³];
b)[(2⁶)⁴:2³. (2⁶+2⁶) - 4⁶: 2¹⁰]: (2²⁸-2²) + 9.​

Answer 1

Răspuns:

a=33700

b=10

Explicație pas cu pas:

a) 10². [4+5.3² - 2⁵ +4³ (49-3²): 2³]=10²·[4+45-32+64·40:8]=

   10²·(17+2560:8)=10²·(17+320)=100·337=33700

b)[(2⁶)⁴:2³. (2⁶+2⁶) - 4⁶: 2¹⁰]: (2²⁸-2²) + 9=[[2²⁴:2³·2⁶(1+1)-(2²)⁶:2¹⁰]:(2²⁸-2²)+9=

(2⁽²⁴⁻³⁾·2⁶·2-2¹²:2¹⁰):(2²⁸-2²)+9=(2²¹·2⁷-2²):(2²⁸-2²)+9=

(2²⁸-2²):(2²⁸-2²)+9=1+9=10