Question

bài 3 : 

4.3³ - 75 : 5²

7. 2⁴- 16. 3

2³. 17- 2³. 14

45 + 54 : 3²

17. 85 + 15. 17 - 120 

3²⁴ : 3²¹ + 2². 2³

92 + 4³ : 8

5. 2³ + 7¹¹ : 7⁹ - 1²⁰²³

Answer 1

a: \(4\cdot3^3-75:5^2\)

\(=4\cdot27-\dfrac{75}{25}\)

=108-3

=105

b: \(7\cdot2^4-16\cdot3\)

\(=16\cdot7-16\cdot3\)

=16(7-3)

=16*4=64

c: \(2^3\cdot17-2^3\cdot14\)

\(=8\cdot17-8\cdot14\)

=8(17-14)

=8*3

=24

d: \(45+\dfrac{54}{3^2}\)

\(=45+\dfrac{54}{9}\)

=45+6

=51

e: \(17\cdot85+15\cdot17-120\)

\(=17\left(85+15\right)-120\)

=1700-120

=1580

f: \(\dfrac{3^{24}}{3^{21}}+2^2\cdot2^3\)
 

\(=3^3+2^5\)

=27+32

=59

g: \(92+4^3:8\)

=92+64/8

=92+8

=100

h: \(5\cdot2^3+7^{11}:7^9-1^{2023}\)

\(=5\cdot8+49-1\)

=40+48

=88