Question

A=(x+1)(x+2)+(×+2)(x+3)-2(x+5)(x-2)-2x

Answer 1

A=(x+1)(x+2)+(x+2)(x+3)-2(x+5)(x-2)-2x
A= x^2+2x+x+2+x^2+3x+2x+6-2(x^2-2x+5x-10) -2x
A= 2x^2 +6x+8 -2x^2+4x+20
A=10x+28 

Answer 2

A=(x+1)(x+2)+(x+2)(x+3)-2(x+5)(x-2)-2x

A=x²+2x+x+2 + x²+3x+2x+6 -2 (x²-2x+5x-10) -2x
A=x²+2x+x+2 + x²+3x+2x+6 -2x²+4x-10x+20 -2x

A=28