Sagot :
(x+2)(x+5)= [tex]x^{2}[/tex]+5x+2x+10= [tex]x^{2}[/tex]+7x+10
(x-2)(x+5)= [tex]x^{2}[/tex]+5x-2x-10= [tex]x^{2}[/tex]+3x-10
(x+2)(x+5)= [tex]x^{2}[/tex]+5x+2x+10= [tex]x^{2}[/tex]+7x+10
(x-2)(x+5)= [tex]x^{2}[/tex]+5x-2x-10= [tex]x^{2}[/tex]+3x-10