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4( m+3)²-4(m²+9m+8)
4 [ (m²+6m+9)-(m²+9m+8)]
4 [m²+6m+9-m²-9m-8]
4(-3m+1)
-12m+4
4 [ (m²+6m+9)-(m²+9m+8)]
4 [m²+6m+9-m²-9m-8]
4(-3m+1)
-12m+4
PrashanSharma:
-1/3
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I hope it help's u.....
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