Question

(x-3) (x + 3) + 7 = x (x-7) - 9

Answer 1

Respuesta:

(

−

3

)

(

+

3

)

+

7

=

(

−

7

)

−

9

{\color{#c92786}{(x-3)(x+3)}}+7=x(x-7)-9

(x−3)(x+3)+7=x(x−7)−9

(

+

3

)

−

3

(

+

3

)

+

7

=

(

−

7

)

−

9