Toán Lớp 6: Tìm x biết: 320:(x^3−24)+24=32
Leave a reply
Register Now
Login
Lost Password
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Toán Lớp 6: Tìm x biết: 320:(x^3−24)+24=32
Comments ( 2 )
320 : (x³ − 24) + 24 = 32
320 : (x³ − 24) = 32 – 24
320 : (x³ − 24) = 8
(x³ − 24) = 320 : 8
x³ − 24 = 40
x³ = 40 + 24
x³ = 64
x³ = 4³
x = 4
Vậy x = 4
#Lp
320 : ( x^3 – 24 ) + 24 = 32
320 : ( x^3 – 24 ) = 32 – 24
320 : ( x^3 – 24 ) = 8
x^3 – 24 = 320 : 8
x^3 – 24 = 40
x^3 = 40 + 24
x^3 = 64
x^3 = 4^3
=> x = 4
Vậy x = 4