\(\left(4^3-11x\right).5^3=4.5^4\)
\(\Rightarrow\left(4^3-11x\right)=4.5^4\div5^3\)
\(\Rightarrow4^3-11x=20\)
\(\Rightarrow11x=4^3-20\)
\(\Rightarrow11x=44\)
\(\Rightarrow x=4\)
(43 - 11 . x) . 53 = 4 . 54 = 2500
(43 - 11 . x) = 2500 : 125
43 - 11 . x = 20
11 . x = 43 - 20
11 . x = 44
x = 44 : 11
x = 4
Học tốt!!!
Giải
(43 - 11.x).53=4.54
(43 - 11.x).53= 4.625
(43 - 11.x).53= 2500
43 - 11.x = 2500 : 53
43 - 11.x =2500 : 125
43 - 11.x =20
11.x =43 - 20
11.x =64 - 20
11.x =44
x =44 : 11
x = 4
Vậy x = 4
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