A,B,C,D
x≥-2; or ≤-6(loai)
all (+) and (-)
x=-3; only A(-)==> yes
x=-4 (A,B(-); CD(+)=> no
x=-5( 0nly D(+)--> yes
x={-3;-5}
A,B,C,D
x≥-2; or ≤-6(loai)
all (+) and (-)
x=-3; only A(-)==> yes
x=-4 (A,B(-); CD(+)=> no
x=-5( 0nly D(+)--> yes
x={-3;-5}
tìm x thuộc z biet (x ^3+7).(x^+12).(x^3+65).(x^3+130)
ai lam dung mk tk cho nhe
tìm x thuộc z biet (x ^3+7).(x^+12).(x^3+65).(x^3+130)<0
Tìm x
100-7.(x-5)=31+33
12.(x-1):3=43+23
24+5.x=75:73
5.x-206=24 . 4
Bài 3:Tìm x:
a) (3.x-15)7= 0
b) 42 . x + 6=1
c) (3-x)10x: (3-x)20= 1 ( x ≠ 3)
d) (x-6)3=(x-6)2
Giusp minh nah
tim x thuoc N
a,\(\dfrac{1}{4}\cdot\dfrac{2}{6}\cdot\dfrac{3}{8}\cdot...\cdot\dfrac{31}{64}=2^x\)
b,\(\left(x-3\right)^3=125^2\)
c,\(7^{x+2}+2\cdot7^{x-1}=345\)
d,\(3^{x-5}-81=0\)
bai hoi dai cac ban giup mk
Bài 5 : tìm x
a,6.x^3-=40 b,(x -1 ) ^3 = 9^3 c,(x-1)^2 =25
d, (2x+1)^3=125 e,(2x=4)^3=64
mọi người giúp mik nhé mik đang cần gấp
Bài 2: Tìm x
a) 5 ( x + 7 ) - 10 = 23 . 5
b) 26 + ( 5 + x ) 34
c) 42 . 2 . ( x + 2 ) = 4
d) 4x – 2 . 42 = 64
e) x + 2 . x + 3 . x + ….. + 100 . x = 10100
f ) ( x + 17 ) : 21 – 3 = 7