Question

(x-5)²   = (1-3x)²

Answer 1

(x - 5)² = (1 - 3x)²

=> x - 5 = 1 - 3x

=> 4x = 6

=> x = 1,5

Answer 2

\(\left(x-5\right)^2=\left(1-3x\right)^2\)

\(\Rightarrow x-5=1-3x\)

\(\Rightarrow x+3x=1+5\)

\(\Rightarrow4x=6\)

\(\Rightarrow x=6:4\)

\(\Rightarrow x=1,5\)

Vậy x = 1,,5

Answer 3

Theo đầu bài ta có:
\(\left(x-5\right)^2=\left(1-3x\right)^2\)

TH1: \(\Rightarrow x-5=1-3x\)
\(\Rightarrow x+3x=1+5\)
\(\Rightarrow4x=6\)
\(\Rightarrow x=1,5\)

TH2: \(\Rightarrow x-5=-\left(1-3x\right)\)
\(\Rightarrow x-5=3x-1\)
\(\Rightarrow3x-x=1-5\)
\(\Rightarrow2x=-4\)
\(\Rightarrow x=-2\)