a: \(\left\{100:\left[45-45:\left(-9\right)\right]-32\right\}\cdot5-2\cdot5^2\)
\(=\left\{100:\left[45+5\right]-32\right\}\cdot5-2\cdot25\)
\(=\left\{100:50-32\right\}\cdot5-50\)
\(=\left(-30\right)\cdot5-50\)
=-150-50
=-200
b: \(\left(25-16-3^2\right)\cdot2024\)
\(=\left(9-9\right)\cdot2024\)
\(=0\cdot2024=0\)
c: \(\left(34-42-2023\right)\cdot128^0\)
\(=34-42-2023\)
=-8-2023
=-2031
a, 29 + 131 + 237 + 763 b, 65 + 327 + 15 + 73 c, 12+ 54:18 - 8
d.45.58+ 45.42 e) 35 . 34 + 35 . 26+ 40.35 f. 65 . 25 + 65 . 45+ 30.65
g) 750 : {32 – [ 22 + (5. 32 – 42)]} + 100 h) {630 : [16 + 3.(6 + 3. 4)]} – 1
i) 5871: [928 – ( 247- 82). 5] + 21750 k) 375 : {32 – [ 4 + (5. 32 – 42)]} – 14
a)x-(32-27)=3x-(32+x)
b)45-(2x-37)=+x-54
c)42-(3-x)=25-34
d)(25-2x)-34=x-54
Giúp mình giải nhoa :*
Tính nhanh
a)1-3+5-7+9-11+....33-35.
B) (42+43+44+45++47)-(32+33+34+35+36+37)
Bài 1: Tìm x
a) (2x+5)^2=196
b) (-3x+1)^2=25
c) ( x+1)^3=-27
d) (x^2-9) . (x^2+1)=0
Bài 2 : Tính nhanh
a) -25 .68+(-34).(-256)
b) -35(45-74)-74 . (35+45)
c) (-2)^5 . 30 +(-2)^5 . 69+(-32)
d) 25.(32+47)-32 . ( 25+47)
CẦN GẤP !!!!!!!! AI NHANH TICK CHO...
Tính hợp lý:
45-58+(-45)+(+58)-3
(-57)-(-12)+3-(-57)
-(-24)-(-30)+(-24)-30+8
-(-12)+(+19)-(+12)+8-19
47-(-53)+(-47)-(+53)
-(+28)+32-(-28)+(-34)
15-(+72)+(-15)+(+72)
20-(+46)+(-25)-(-46)
28-(-32)+(-28)-32+5
-75+(-49)+(+75)+49-12
Giúp e vs ạ
1.
a) 2x + 5 = 34 : 32
b) ( 3x - 24 ) . 73 = 2.74
c) [ 3 . ( 42 - x ) + 15 = 23 . 3
d) 126 + ( 132 - x ) = 300
2.
a) 120 - ( x + 55 ) = 60
b) ( 7x - 11)3 = 25 .52 + 200
c) 2x + 2x+4 = 544
3.
a) 10 + 2x = 49 : 47
b) 70 - 5 ( x - 3 ) = 45
c) 4 + 95 : x = 143 : 142 - 23
a) -16+(45-37)-(23-32)
b) 56-(-35-23)+(34-18)
A) 1-3+5-7+9-11+...33-35
Ai giải đc tui cảm ơn nhoa moamoa :*
b) (42+43+44+45+47)-(32+33+34+35+36+37)
Cần lời giải chi tiết , Thanks
