\(=\dfrac{3^{17}\cdot3^{44}}{3^{30}\cdot3^{30}}=3\)
\(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}+\frac{9^2.2^{11}}{16^2.6^3}\)
tính
\(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}\)
Rút gọn:
\(\frac{3^{17}.81^{11}}{27^{10}.9^{15}}\)
tính
\(\frac{2^{15}.9^4}{6^3.8^3}\)
\(\frac{81^{11}.3^{17}}{27^{10}.9^{15}}\)
viết các biểu thức sau dưới dạng lũy thừa
a) 9 x 3 mũ 2 x 1/81 x 27
b) 4x32 :(2 mũ 3 x 1/16)
c)3 mũ 4 x 3 mũ 5 : 1/27
d) 81 mũ 11 x 3 mũ 17 / 27 mũ 10 x 9 mũ 15
A) 82.45/220
B) 8111.317/2710.915
1. Tính hợp lí : A. (0.25)^3×32
B. (-0.125)^3.80^4
C. 8^2×4^5/2^20
D. 81^11×3^17/27^10×9^15
1/2x + 2/9 = 7/6
317 × 8111/ 2710 × 915
2/5x - 1/3 = 2/3
/=\(\frac{ }{ }\)
bài 6: tính :
\(\dfrac{10^9.\left(-81\right)^{10}}{\left(-8\right)^4.25^5.9^{10}}\)
b,\(\dfrac{9^4.\left(-4\right)^5.25^3}{8^3,\left(-27\right)^2.5^7}\)
c,\(\dfrac{3^{186}.\left(-25\right)^{50}}{\left(-15\right)^{100}.27^{29}}\)
Rút gọn
( 1/4)44 x ( 1/2)12
317 x 8111 / 2710 x 915
