3m2+2m-7=0 using by formula
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Answer:
3m
2
+2m−7=0
a=3,b=2,c=−7
m=
2a
−b±
b
2
−4ac
m=
2⋅3
−2±
2
2
−4⋅3(−7)
=
6
−2±2
22
m=
3
−1+
22
,−
3
1+
22
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