Question

(x + 2).(x+1) - x. (x+5) = 6

Answer 1

\((x+2)(x+1)-x(x+5)=6\\\Leftrightarrow x^2+3x+2-x^2-5x=6\\\Leftrightarrow -2x+2=6\\\Leftrightarrow -2x=4\\\Leftrightarrow x=-2\)

Answer 2

  

Answer 3

(x+2)(x+1)-x(x+5)=6

=>\(x^2+3x+2-x^2-5x=6\)

=>\(-2x+2=6\)

=>-2x=4

=>\(x=\dfrac{4}{-2}=-2\)