a,3.52+(15.22-23.22)
b,75.34+76.75-75.10
c,84:4+3 mũ 9 : 3 mũ 7 +2017 mũ 0
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a)-84:4+3^9:3^7+5^0
=-21+(3^9:3^7)+1
=-21+3^2+1
=-21+9+1
=-12+1
=-11
b)295-(31-2^5.5)^2
=295-(31-32.5)^2
=295-(-129)^2
=295+129^2
=295-16641
=-16346
tick cho mk nha bạn
a) -84 : 4 + 3^ 9 : 3 ^ 7 + 5 ^0
=-84:4+3^2+1
=-84:4+9+1
=-21+9+1
=-12+1
=-11
b) 295 - ( 31 - 2^ 5. 5) ^2
= 295 - ( 31 -32. 5)^2
= 295 - (-129)^2
=295-16641
=-16346
a,\(5^3.2-100:4+2^3.5\)
= 125 . 2 - 25 + 8 . 5
= 250 - 25 + 40
= 265
b, \(6^2:9+50.2-3^3.3\)
= 36 : 9 + 100 - 27 . 3
= 4 + 100 - 81
= 23
84 : 4 + 39 : 37 + 5
= 21 + 39 - 7 + 5
= \(21 +3^{2} + 5\)
= \(21 +9 + 5\)
= 35
A)3^3. 7^7
B)4^9. 3^21
C)2^4036
D)x.x.x.x.y.y=x^4. y^2
E)a.a^3.a.a.a.b.b.b=a^7.b^3
(1981 x 1982 - 990) : (1980 x 1982 + 992)
=(1980 x 1982+1982 -990) : (1980 x 1982 +992)
=(1980 x 1982 + 992) : ( 1980 x 1982 + 992)
=1
B=[(45.79+45.21)]:90-5^2]:5+2^3 B=[(45.79+45.21):90-25]:5+8 B=[(45.(79+21):65]:13 B=[(45.100):65]:13 B=[4500:65]:13 B=4500:65:13
a,3.52+(15.22-23.22)
= 156 + 22(15 - 23)
= 156 + 22. (-8)
= 156 - 176
= -20
b,75.34+76.75-75.10
= 75(34 + 76 - 10)
= 75. 100
= 7500
c,84:4+3 mũ 9 : 3 mũ 7 +2017 mũ 0
= 84 : 4 + 39 : 37 + 20170
= 21 + 9 + 1
= 31
a) Ta có: \(3\cdot52+\left(15\cdot22-23\cdot22\right)\)
\(=3\cdot52+22\cdot\left(15-23\right)\)
\(=3\cdot52+22\cdot\left(-8\right)\)
\(=156-176=-20\)
b) Ta có: \(75\cdot34+76\cdot75-75\cdot10\)
\(=75\cdot\left(34+76-10\right)\)
\(=75\cdot\left(110-10\right)\)
\(=75\cdot100\)
\(=7500\)
c) Ta có: \(84:4+3^9:3^7+2017^0\)
\(=21+3^{9-7}+1\)
\(=22+3^2\)
\(=22+9=31\)