Question

* Fatorise *
+ 2x +7=0
2
O= 1 =
x
PC).​

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

(x+1) ^2

Step-by-step explanation:

x^2+2x+1=0

x^2+1x+1x+1=0

x(x+1)+1(x+1)=0

(x+1)(x+1)=0

(x+1)^2=0(x=-1)

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