x²+3x+2
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x²+3x+2=0
x²+x+2x+2=0
x(x+1)+2(x+1)=0
(x+1) {x+2}=0
x+1=0. /. x+2=0
x=-1. /. x=-2
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Step-by-step explanation:
x²+3x+2
=>x²+2x+x+2
=>x(x+2)+1(x+2)
=>(x+1)(x+2)
✏x+1=0
=>x=-1
✏x+2=0
=>x=-2
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