2.32-43:(16.2)
CMR:31/2.32/2.32/3...60/2=1.3.5...59
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2.32
16.2 x 3,7 + 5.7 x 16.2 - 7.8 x 4.8 - 4.6 x 7.8 / 11.2 +12.3 +13.4 -12.6 -11.5 -10.4
16.2*5.7+16.2*3.4-6.2*4.8-6.2*4.6/13.4+12.3+11.2-10.4-11.5-12.6-0.4
9x-2.32=34
9x - 2.32 = 34
<=> 9x - 2.9 = 81
<=> 9x - 18 = 81
<=> 9x = 81 + 18
<=> 9x = 99
<=> x = 11
\(9x-2.3^2=3^4\)
⇔ \(9x-2=3^2\)
⇔ \(9x=11\)
⇔ \(x=\dfrac{11}{9}\)
9x-2.32 = 34
\(9x-2\times3^2=3^4\)
\(3^2\times x-2\times3^2=3^4\)
\(3^2\times\left(x-2\right)=3^4\)
\(x-2=3^4\div3^2\)
\(x-2=3^2\)
\(x-2=9\)
\(x=9+2\)
\(x=11\)
\(9x-2.3^2=3^4\)
\(3^2.x-2.3^2=3^4\)
\(3^2.\left(x-2\right)=3^4\)
\(x-2=3^2\)
\(x-2=9\)
\(x=11\)
9x - 2.3² = 3⁴
9x - 2.9 = 81
9x - 18 = 81
9x = 81 + 18
9x = 99
x = 99 : 9
x = 11
9x–2.32=34
[3x-2]3=2.32
[3x-2]3=2.32
[3x-2]3 = 64
(3x-2)3 = 43
3x - 2 = 4
3x = 4 + 2
3x = 6
x = 6 : 3
x = 2
Ta có: \(\left(3x-2\right)^3=2\cdot32\)
\(\Leftrightarrow3x-2=4\)
\(\Leftrightarrow3x=6\)
hay x=2
(3x - 2)3= 2.32
\(\left(3x-2\right)^3=2.32\\ \Rightarrow\left(3x-2\right)^3=64\\ \Rightarrow\left(3x-2\right)^3=4^3\\ \Rightarrow3x-2=4\\ \Rightarrow3x=6\\ \Rightarrow x=2\)
(3\(x\) - 2)3 = 2.32
(3\(x\) - 2)3 = 2.25
(3\(x\) - 2)3 = 43
3\(x\) - 2 = 43
3\(x\) - 2 = 4
3\(x\) = 6
\(x\) = 2