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Sagot :
Answer:
-3,-1
Step-by-step explanation:
x²+4x+3=0
x²+4x=-3
x²+4x+(2)²=-3+(2)²
(x+2)²=-3+4
(x+2)²=1
Take square root of both sides
x+2=±1
x=-2±1
x=-1 or-3
Standard form:
X^2 +4x +3=0
Factorization:
(x+3=0)(x+1)=0
Solution based on top factorization:
X+3=0. X1= -3
X+1=0. X2= -1
X^2 +4x +3=0
Factorization:
(x+3=0)(x+1)=0
Solution based on top factorization:
X+3=0. X1= -3
X+1=0. X2= -1
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