Question

(x+2)2 Conta completa pfvr​

Answer 1

(X + 2)²

(X + 2) (X + 2)

X² +2X +2X +4

X² +4X +4

A ( 1 ) // B ( 4 ) // C ( 4 )

B² -4.A.C

4² - 4 . 1 . 4

16 - 16

Δ= - 0

-B ± √0

 2 ( A )

- 4 ± 0    =  -4   =   " - 2 "                   : )

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