Respuesta :

DeanR

My natural tendency is to FIOL instead of FOIL but it doesn't matter.


(x+5)(x-6)


Firsts: x times x


Outers: x times -6 = -6x


Inners: 5 x


Lasts: 5(-6)=-30


Outers+Inners = -6x + 5x = -x


Answer: -x



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


Answer: second choice



Otras preguntas