Question

[Trịnh Thị Hải Yến]

(3/5)^x+1=9/25

(2x+1)³=1/125

Giúp mk nha mk tick cho

Answer 1

[Nandemonaiya]

\(\left(\frac{3}{5}\right)^{x+1}=\frac{9}{25}\)

\(\left(\frac{3}{5}\right)^{x+1}=\left(\frac{3}{5}\right)^2\)

\(\Rightarrow x+1=2\)

\(\Rightarrow x=1\)

\(\left(2x+1\right)^3=\frac{1}{125}\)

\(\left(2x+1\right)^3=\left(\frac{1}{5}\right)^3\)

\(\Rightarrow2x+1=\frac{1}{5}\)

\(\Rightarrow2x=\frac{-4}{5}\)

\(\Rightarrow x=\frac{-2}{5}\)

vậy \(x=\frac{-2}{5}\)

Answer 2

[OoO nhóc ngu ngơ OoO dễ bị lừa]

-2/5

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