Question

precisa aparecer o desenvolvimento
|a(x+1)(x-1)=
|b(x+1)(x-2)=
|c)7x(x-1)=
|d)2x(x+1)=
​

Answer 1

a) x²-1

b) x²-x-2

c) 7x²-7x

d) 2x²+2x

a(x+1)(x-1)= x²-x+x-1 = x²-1

|b(x+1)(x-2)= x²-2x+x-2 = x²-x-2

|c)7x(x-1)= 7x²-7x

|d)2x(x+1)= 2x²+2x

Prontinho

05/04/22