Question

[Pham Phu Khang]

(x+1 phan 2)^2=16 phan 25

giai ho

Answer 1

[Despacito]

\(\left(\frac{x+1}{2}\right)^2=\frac{16}{25}\)

\(\left(\frac{x+1}{2}\right)^2=\frac{4^2}{5^2}\)

\(\left(\frac{x+1}{2}\right)^2=\left(\frac{4}{5}\right)^2\)

\(\Rightarrow\frac{x+1}{2}=\frac{4}{5}\)

\(\Rightarrow\left(x+1\right).5=2.4\)

\(\Rightarrow\left(x+1\right).5=8\)

\(\Rightarrow x+1=\frac{8}{5}\)

\(\Rightarrow x=\frac{3}{5}\)

vay \(x=\frac{3}{5}\)

Answer 2

[Pham Phu Khang]

minh go sai