Question

Tìm x :

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

Answer 1

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

\(\Rightarrow4x^2-6x+9=x^2+10x+25\)

\(\Rightarrow4x^2-6x+9-x^2-10x-25=0\)

\(\Rightarrow x^2-16x-16=0\)

\(\Rightarrow\)

Answer 2

(2x-3)²=(x+5)²

=>(2x-3)=(x+5)

=>.......

Answer 3

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

\(\Leftrightarrow2x-3=x+5\)

\(\Leftrightarrow x=8\)