\(\left(x+1\right)^3=-125\)
\(\left(x+1\right)^3=-5^3\)
\(\Leftrightarrow x+1=-5\)
\(\Rightarrow x=-6\)
\(\left(x+1\right)^3=-125\)
\(\Leftrightarrow\left(x+1\right)^3=-5^3\)
\(\Leftrightarrow\left(x+1\right)=-5\)
\(\Leftrightarrow x=-6\)
Chúc em học tốt ~~~
(x+1)3=-125
(x+1)3=(-5)3
x+1=-5
x=-5-1
x=-6
Vậy x=-6
Tìm x
( 2/3 -x )^3 - 1/125 = 0
Tìm x biết, X+1/125+x+2/124+x+3/123+x+4/122+x+146/5=0
\(\dfrac{1}{1.4}+\dfrac{1}{4.7}+\dfrac{1}{7.10}+.......+\dfrac{1}{x\left(x+3\right)}=\dfrac{125}{376}\)(x ϵ N*)
Tìm x :
(1/125-1^3)x(1/125-2^3)x...(1/125-25^3)
Tìm x biết
a) (x + 2006/2007) ^2
b)(x - 1/5 ) ^3 = 8/125
Tìm x:
a) 7/2 - x = 0,75
b) 2| x - 1/3 |+1/5 = 1
c) ( 2/3 -x )^3 - 1/125 = 0
Cảm ơn mb nhiều lắm :3
Tìm x biết
A) x3 = -125
B) | x | = x + 1
C) x2 = x
Tìm x, biết:
a) \(\dfrac{2}{3}\)x - \(\dfrac{1}{2}\)x = \(\left(-\dfrac{7}{12}\right)\) . \(1\dfrac{2}{5}\)
b) \(\left(\dfrac{1}{5}-\dfrac{3}{2}x\right)^2\) = \(\dfrac{9}{4}\)
c) (1,25 - \(\dfrac{4}{5}\)x)3 = -125
Tìm x, biết:
\(\frac{1}{1.4}+\frac{1}{4.7}+\frac{1}{7.10}+...+\frac{1}{x\left(x+3\right)}=\frac{125}{376}\)
