4x^2-25x+36=(x-4)(x-a)Найти: a

Question

4x^2-25x+36=(x-4)(x-a)
Найти: a

Answer 1

A =(4x² -25x +36)/(x-4) -x

a =(4x² -25x +36 -x(x-4)) /(x-4)

a =(4x² -25x+36 -x² +4x) /(x-4)

a =(3x² -21x +36) /(x-4)

a =3(x² -7x +12) /(x-4)

a =3(x-4)(x-3) /(x-4)

a =3(x -3)

a =3x -9

вроде так