Question

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11. Calculați:
b. (9+3⁴:9²):10+81×82:41:3³-(2013²⁰¹⁴)⁰
c. 18176:71-3×(29×24-23×30)+11⁷:11⁵
d. (84084:42+13):403+9×[85085:11-3×(73×16-1143)]

12. Dacă a+2×b=5 si b+2×c=91, atunci calculați 5×a+13×b+6×c

13. Efectuați:
a. [(3²)⁵:3⁷-3⁰-3²]×4:34+2²
b. [123+2⁷×2²+2⁶⁷:2²⁷]:[123+2¹⁴:2⁵+(2⁵)⁸]
c. (25⁴)³:(4²+3²)¹¹-(0²⁰¹⁰+1²⁰¹²+2013⁰)²
d. [3³×3+2⁴⁵:2⁴²+(3⁵)⁶:3²⁹+9⁰]:31
e. (2⁸+9²+5⁶+36²):(0⁶+4⁴+3⁴+25³+6⁴)​

Answer 1

11.b. . (9+3⁴:3⁴):10+81×82:41:3³-1=

= (9+1):10+81×82:41:3³-1

=10:10+81×82:41:3³-1

=1+81×82:41:3³-1

=3⁴×82:41× 1

3³

=3⁴×2× 1

3³

=3×2

=6

c.18176:71-3×(29×24-23×30)+11⁷:11⁵=

=256-3(696-690)+11²

=256-3×6+121

=256-18+121

=238+121

=359

d.(84084:42+13):403+9×[85085:11-3×(73×16-1143)]=

=(2002+13):403+9×[7735-3×(1168-1143)]

=2015:403+9×(7735-3×25)

=5+9×(7735-75)

=5+9×7660

=5+68940

=68945