(11-x)^3=250 :2
(11-x)^3=5^3
11-x=5
x=6
\(\left(11-x\right)^3.2=250\)
=> \(\left(11-x\right)^3=250:2=125\)
=> \(\left(11-x\right)^3=5^3\)
=> \(11-x=5\)
=> \(x=11-5=6\)
Các câu hỏi tương tự
tim x biet : (11/12+11/12.23+11/23.24+...+11/89.100) + x = 2/3
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MN GIUP MINH VOI DAG CAN GAP
tim x
[(6x-39)chia 7 ]
x=?
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(10/99+11/199-12/299)x(1/2-1/3+-1/6)
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Cho B=2+2^2+.....+2^2019
a, Tim x eN sao cho A+2=2^x+100
b, A+2 co phai la mot so chinh phuong khong
c, A =3+3^2+....+3^300
chung to A chia 13
d, 2A + 3 co phai la so chinh phuong ko
Bai 1. 12 chia het ( x + 3 )
bai 2. Tim so tu nhien x, biet 6x + 4 chia het cho 2x
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tim so tu nhien x,biet
a, 2x+3x=1505
b,1+35+...+x=3200(xla so le)
c,(x+1)+(X+2)+(x+3)+....+(x+100)=5750
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