tim x nguyen biet:
a 8.(x mu 2 +3).(5-x)
b)(2x + 1)mu 2=25
c) (1-3x)mu3 =64
d)(4-x)mu3 =-27
e) xmu2 -5x =0
Tim x
A, 6 x + x = 5^11 : 5^9 +3^1
B, 7 x - x = 5^21 : 5^19 + 3 . 2^2 -7^0
C, 7 x - 2x = 6^17 : 6^15 + 44 : 11
giup minh nhe . Thank you
Tim x
a) (x - 2) - (- 8) = - 137
b) 15 - ( - x + 18) = - 24
c) 12 - |x| = -19
d) 10 - |x + 3| = -4 - (- 10)
e) x .( x + 2) = 0
f) (x + 1) . ( x - 7)= 0
g) x2 + 2x = 0
h) ( 2x - 1) . ( x - 7 )= 0
bài1 tìm x thuộc z
a) 10-x-5=-5-7-11
b) |x| -3=0
c) ( 7-|x| ) .(2x-4)=0
c)2+3x=-15-19
d) 2x-5=-17+12
bài2 tính nhanh
a)16.(38-8)-38.(16-1)
b) (-41).(59+2)+59.(41-2)
c)125.(-8).(-25).9.4.100^0:3
giải nhanh giúp mk đg cần gấp
A, 7 x - x = 5^21 : 5^19 + 3 . 2^2 - 7^0
B, 6 x + x = 5^11 : 5^19 + 3^1
C, 7 x - 2x = 6^17 : 6^15 + 44:11
bài 19: tìm x
a) 5 . ( x - 7 ) = 0
b) 25 ( x - 4 ) = 0
c) ( 34 - 2x ) . ( 2x - 6 ) = 0
d) ( 2019 - x ) . ( 3x - 12 ) 0
e) 57 . ( 9x - 27 ) = 0
f) 25 + ( 15 - x ) = 30
g) 43 - ( 24 - x ) = 20
h) 2 . ( x - 5 ) - 17 = 25
i) 3 . ( x + 7 ) - 15 = 27
j) 15 + 4 . ( x - 2 ) = 95
k) 20 - ( x + 14 ) = 5
l) 14 + 3 . ( 5 - x ) = 27
Câu 2 : tìm x A, 7/8 + x = 3/5 B, 1/3 : ( 2x - 1 ) = -4/24 C, 17/2 - ( x - 3/4 ) = -7/4 D, ( 3x + 2 ) . ( -2/5x -7 ) = 0
bài 1 : tính nhanh
a) 32.(-64)-64.68
b)-54.76+12.(-76)-76.34
c)19-42.(-19)+38.5
d)2.(-25).(-4).50
e)-125.5(-8).2
bài 2: tìm số nguyên y,sao cho
a)(4-x).(x+3=0
b)7.(2x-8)=0
c) -x.(8+x)=0
d) -4x=36
e)3x+82=-8
f)|2x-15|=5
g)|x|+|-x+3|=7 với 0<x<3
A/125.(-24)+24.225
B/(-8).17+(-8).83
C/-12.|X-3|=-24
D/3X-19=2X-7
E/X2 -37=-1
F/|X-8|=0
LÀM HẾT CHO 10 TICK NHA
