a, 3² . 5 - 2^x . 6 + 1⁸³ 

= 9 . 5 - 2^x . 6 + 1

= 45 - 2^x . 6 + 1

= 45 - 2^{x + 1} . 3 + 1

=  3( 15 -  2^{x + 1}) + 1

b, 100 : { 280 : [ 450 - ( 480 - 4 . 5² ) ] }

= 100 : { 280 : [ 450 - 380  ] }

= 100 : { 280 : 70 }

= 100 : 4 = 25

c, 8 . { 24 - [ 3 . ( 5 + 25 ) + 15 ] : 15 }

= 8 .   { 24 - [ 3 . 30 + 15 ] : 15 } 

= 8 . { 24 - 105 : 15 }

= 8 . { 24 - 7 }

= 8 . 17 = 136

Bài này dễ thôi

600 : { 450 : ( 450 - [ 4x5^3 - 2^3 x 5^2 ] ) }

= 600 : { 450 : ( 450 - 300 ) }

= 600 : { 450 : 150 }

= 600 : 3

= 200

bai nay dễ thui minh lam rui

nhung bai nay dai qua

viet moi tay

luc nao chan thi mk giai

chuc bn hoc gioi!

a, 8*17*125=(8*125)*17=1000*17=17000

b, 4*37*25=(4*25)*37=100*37=3700

(0.6)^5/(0.2)^6 
= [(0.2)^5. 3^5]/(0.2)^6 
= 3^5/0.2 
=243/0.2 
= 1215 

6^3+3.6^2+3^3/-13 
= 2^3.3^3+3.2^2.3^2+3^3/-13 
=3^3(2^3+2^2+1)/-13 
=3^3.13/-13 
=-27

\(\frac{6^3+3\cdot6^2+3^3}{-13}=\frac{\left(3\cdot2\right)^3+3\cdot\left(3\cdot2\right)^2+3^3}{-13}=\frac{3^3\cdot2^3+3\cdot3^2\cdot2^2+3^3}{-13}=\frac{3^3\cdot\left(2^3+2^2+1\right)}{-13}=\frac{27\cdot13}{-13}=-27\)

a: \(=\dfrac{\left(5\cdot2^6+2^6\cdot3^2-2^6\cdot3\right)}{2^6}=5+9-3=2+9=11\)

b: \(=\dfrac{600}{450:\left[450-4\cdot125+8\cdot25\right]}\)

\(=\dfrac{600}{450:150}=\dfrac{600}{3}=200\)

c: \(=1500-\left\{125\cdot8-11\cdot\left(49-5\cdot8+8\cdot0\right)\right\}\)

\(=1500-\left\{1000-99\right\}=1500-901=599\)