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If m > 0 and 3m2 + 12m – 15 = 0, then m =
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08 Apr 2018, 10:24
08 Apr 2018, 10:24
Expert Reply
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Question Stats:
88% (00:28) correct
12% (01:04) wrong based on 25 sessions
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Re: If m > 0 and 3m2 + 12m – 15 = 0, then m =
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09 Apr 2018, 21:06
09 Apr 2018, 21:06
1
3m2+12m-15=0
m2+4m-5=0
(m+5)(m-1)=0
m=-5,1
since m>0, m=1 ANS.
m2+4m-5=0
(m+5)(m-1)=0
m=-5,1
since m>0, m=1 ANS.
Re: If m > 0 and 3m2 + 12m – 15 = 0, then m =
[#permalink]
10 Apr 2018, 02:24
10 Apr 2018, 02:24
1
Factorization will give 2 possible values for m.
But as the question asks for only positive value, there is only one possible solution.
1
But as the question asks for only positive value, there is only one possible solution.
1
