3^5.4^5
5.4^3 + 2^4 .5
\(=5\cdot2^6+2^4\cdot5=5\cdot2^4\left(2^2+1\right)=80\cdot5=400\)
a) \(\dfrac{6^3+3.6^2+3^3}{-13}\)
b) \(\dfrac{5^4.20^4}{24^5.4^5}\)
Tương tự: Tính
a , − 5 − 3 . − 5 + 3 b , 5.4 − 4 . − 8 c , − 10 + 4 . − 6
trả lời guips câu này với -2/5.4/7+-3/5.2/7+-3/5
\(\dfrac{-2}{5}\cdot\dfrac{4}{7}+\dfrac{-3}{5}\cdot\dfrac{2}{7}+\dfrac{-3}{5}\\ =\dfrac{-2}{5}\left(\dfrac{4}{7}+\dfrac{3}{7}\right)+\dfrac{-3}{5}\\ =-\dfrac{2}{5}+\dfrac{-3}{5}=-1\)
tính:
5^4.20^4/25^%5.4^5
(-10/3)^5.(-6/5)^4
(28\3\7-27\5\9).(2^26+5.4^12) =?
5⁶ : 5³ +2³ :2²
3333 : 3 + 225 :15
15.2³ + 4.3² - 5.7
5.4² - 18 :3²
6² : 4.3 +2.5²
80 - ( 4.5² -3.2³)
a: \(5^6:5^3+2^3:2^2\)
\(=5^3+2\)
=125+2
=127
b: \(3333:3+225:15\)
=1111+15
=1126
c: \(15\cdot2^3+4\cdot3^2-5\cdot7\)
\(=15\cdot8+4\cdot9-35\)
=120+36-35
=121
d: \(5\cdot4^2-18:3^2\)
\(=5\cdot16-18:9\)
=80-2=78
e: \(6^2:4\cdot3+2\cdot5^2\)
\(=36:4\cdot3+2\cdot25\)
=27+50
=77
f: \(80-\left(4\cdot5^2-3\cdot2^3\right)\)
=80-(100-24)
=80-76
=4
Tính
5⁶ : 5³ +2³ :2²
3333 : 3 + 225 : 15
15 . 2³ + 4.3² -5.7
5.4² - 18 : 3²
6² : 4.3 + 2.5³
80 - ( 4.5² - 3.2³)
Lời giải:
a.
$=5^{6-3}+2^{3-2}=5^3+2^1=125+2=127$
b.
$=3333:3+225:15=1111+15=1126$
c.
$=15.2^3+4.3^2-5.7=15.8+4.9-35=120+36-35=120+1=121$
d.
$=5.4^2-18:3^2=5.16-18:9=80-2=78$
e.
$=6^2:4.3+2.5^3=36:4.3+2.125$
$=9.3+250=27+250=277$
f.
$=80-(4.25-3.8)=80-(100-24)=80-100+24=-20+24=4$
Tính
5⁶ : 5³ +2³ :2²
3333 : 3 + 225 : 15
15 . 2³ + 4.3² -5.7
5.4² - 18 : 3²
6² : 4.3 + 2.5³
80 - ( 4.5² - 3.2³)