Tolong dijawab ya k no 7-172-10buat besok

2.(x+3)(x+4)
=

3.(x+5)+(x+2)
=x(x+2)+5(x+2)
=x kuadrat+2x+5x+10
=xkuadrat+10x+10
4.(x+3)+(x+3)
= x(x+3)+3(x+3)
=x kuadrat +3x+3x+9
=x kuadrat + 6x +9
5.(x+3)+(x-4)
= x(x-4)+3(x-4)
=x kuadrat -4x +3x- 12
=x kuadrat -x -12
6.(x+5)(x-2)
=x(x-2)+5(x-2)
=x kuadrat -2x +5x -2
= x kuadrat +3x -2
7.(x-2)(x+3)
=x(x+3)-2(x+3)
=x kuadrat+ 3x -2x-6
=x kuadrat + x -6
8.(x-2)(x-3)
=x(x-3)-2(x-3)
=x kuadrat -3x -2x -6
= x kuadrat -x -6
9.(x-3)(x-3)
= x(x-3)-3(x-3)
= x kuadrat -3x -3x-9
= x kuadrat -6x -9
10.(2x+3)(x+1)
=2x(x+1)+3(x+1)
= 2x kuadrat +2x +3x +3
= 2x kuadrat +5x +3

# maaf Kalo jawabannya salah