(7x-11)^3=2^5.5^2+100
(7x-11)^3=2^5.5^2+200
(7x - 11)^3 = 2^ 5 .5^2+200 = 1000
(7x - 11)^3 = 10^ 3
=> 7x - 11 = 10
=> 7x = 21 =>
x = 3
(7x-11)^3=2^5.5^2+200
(7x-11)^3=1000
7x-11 =10
7x =10+11
7x =21
x =21:7
x =3
Tìm \(x\)
\(\left(7x-11\right)^3=2^5.5^2+200\)
\(\left(7x-11\right)^3=2^5.5^2+200\)
\(\Leftrightarrow\left(7x-11\right)^3=1000\)
\(\Leftrightarrow7x-11=10\)
\(\Leftrightarrow7x=21\)
\(\Leftrightarrow x=3\)
\(\left(7x-11\right)^3=2^5.5^2+200\)
\(\Rightarrow\left(7x-11\right)^3=32.25+200\)
\(\Rightarrow\left(7x-11\right)^3=800+200\)
\(\Rightarrow\left(7x-11\right)^3=1000=10^3\)
\(\Rightarrow7x-11=10\)
\(\Rightarrow7x=21\)
\(\Rightarrow x=3\)
\(\left(7x-11\right)^3=2^5.5^2+200\)
\(\Rightarrow\left(7x-11\right)^3=32.25+200\)
\(\Rightarrow\left(7x-11\right)^3=800+200\)
\(\Rightarrow\left(7x-11\right)^3=1000=10^3\)
\(\Rightarrow7x-11=10\)
\(\Rightarrow7x=21\)
\(\Rightarrow x=3\)
Tìm x biết: (7x-11)^3=2^5.5^2+200
Ta có: \(\left(7x-11\right)^3=2^5+5^2+200=1000\)
\(\Rightarrow\left(7x-11\right)^3=10^3\)
\(\Rightarrow7x-11=10\)
\(\Rightarrow7x=21\)
\(\Rightarrow x=3\)
Trả lời:
\(\left(7x-11\right)^3=2^5.5^2+200\)
\(\Leftrightarrow\left(7x-11\right)^3=32.25+200\)
\(\Leftrightarrow\left(7x-11\right)^3=800+200\)
\(\Leftrightarrow\left(7x-11\right)^3=1000\)
\(\Leftrightarrow7x-11=10\)
\(\Leftrightarrow7x=21\)
\(\Leftrightarrow x=3\)
Vậy\(x=3\)
Hok tốt!
Good girl
\(\left(7\text{x}-11\right)^3=2^5\text{ }.\text{ }5^2+200.\)
\(\left(7\text{x}-11\right)^3=32\text{ }.\text{ }25+200.\)
\(\left(7\text{x}-11\right)^3=800+200.\)
\(\left(7\text{x}-11\right)^3=1000.\)
\(\left(7\text{x}-11\right)^3=10^3.\)
\(\Rightarrow\text{ }\text{7x}-11=10.\)
\(\text{7x}=10+11\)
\(\text{7x}=21\)
\(x=21\div7\)
\(x=3\)
Vậy \(x=3\)
Tìm x biết (7x-11)^3=2^5.5^2+200
\(\Leftrightarrow\left(7x-11\right)^3=32\cdot25+200=1000\)
=>7x-11=10
=>x=3
thim x
(7x-11)^3=2^5.5^2+200
(7x-11)3=25.52+200
(7x-11)3=1000
(7x-11)3=103
7x-11=10
7x=10+11
7x=21
x=21:7
x=3
( 7x - 11 ) 3 = 32 . 25 + 200
( 7x - 11 ) 3 = 800 + 200
( 7x - 11 ) 3 = 1000
( 7x - 11 ) 3 = 103
7x - 11 = 10
7x = 10 + 11
7x = 21
x = 21 : 7
x = 3
a) (7x-11)^3=2^5.5^2+200
b) 3^x+25=26.2^2+2.3^0
tìm x thuộc n:
\(\left(7x-11\right)^3=2^5.5^2+200\)
giúp mik nha mik cần gấp
(7x−11)3 = 25 . 52 + 200
(7x−11)3 = 32 . 25 + 200
(7x−11)3 = 1000
(7x−11)3 = 103
7x−11 = 10
7x = 10 + 11
7x = 21
x = 21 : 7
x = 3
(7x−11)3 = 25 . 52 + 200
(7x−11)3 = 32 . 25 + 200
(7x−11)3 = 1000
(7x−11)3 = 103
7x−11 = 10
7x = 10 + 11
7x = 21
x = 21 : 7
x = 3
mọi người ơi giúp mik bai tìm x này với:
(7x-11)^3=2^5.5^2+200
(7x-11)3=25.52+200
(7x-11)3=32.25+200
(7x-11)3=800+200
(7x-11)3=1000
(7x-11)3=103
=> 7x-11=10
7x=10+11
7x=21
x=21/7
x=3
làm như nào nhỉ
tìm x biết\(\left(7x-11\right)^3=2^5.5^2+200\)
(7x-11)3 = 25.52+ 23.52
(7x-11)3 = 23.52( 22+1)
(7x-11)3 = 23.53=(2.5)3
7x-11=10
x=3
ban anhduc1501 hinh nhu lam chua dung to nghi vay
(7x - 11)3 = 25 . 52 + 200
(7x - 11)3 = 32 . 25 + 200
(7x - 11)3 = 800 + 200
(7x - 11)3 = 1000
(7x - 11)3 = 103
7x - 11 = 10
7x = 21
x = 3