Factorize x^2+3x+2 by using appropriate identities.
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x²+3x+2=0
x=-b+or-underrootb²-4ac/2a
here a=1, b=3,c =2
x=-3+or- underroot3²-4×1×2/2×1
x=-3+or- underroot 9-8/2
x=-3+or-root1/2
x=-3+or-1/2
x=-3-1/2=-2 x=-3+1/2=-1
therefore roots Are -2,-1
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