Question

Упростите выражение (c-4)^2-(3-c)^2

Answer 1

Ответ:

(c-4-(3-c))*(c-4+(3-c))

(c-4-3+c)*(c-4+3-c)

(2c-7)*(-1)

Answer 2

Ответ:

-1(2c-7)

Объяснение:

(c-4)^2-(3-c)^2=9c-4-(3-c))(c-4+(3-c))=(c-4-3+c)(c-4+3-c)=(2c-7)(-1)=-1(2c-7)