Question

( x + 2 ) . ( x + 3 ) - ( x - 2 ) . ( x + 5 )

huhu cứu với ạ

Answer 1

= \(x^2+5x+6-\left(x^2+3x-10\right)\)

= \(x^2+5x+6-x^2-3x+10\)

= \(2x+16\)

= \(2\left(x+8\right)\)

Answer 2

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

\(=x^2+5x+6-\left(x^2+3x-10\right)\)

\(=2x+16\)

Answer 3

   (x+2).(x+3)-(x-2).(x+5)

=2x+16