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The number of real roots of eq 3x^5 + 10x^3 + 30x + 7 =0 ?



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@mukushla @experimentX @Ishaan94

alanli123
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Solve it bro

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Any clue @alanli123

alanli123
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Or graph it?

alanli123
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then look at x intercepts?

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i wabt to solve this manually not by graph

alanli123
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Ok use the rational roots theorem and plug in possible root values

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wat is that

alanli123
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bro how old are u

Ishaan94
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my guess is only one. and that one root should be negative.

Ishaan94
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i used descartes rule of signs.

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hw u guys are using that rule can u teach me that @Ishaan94

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i think that method is very easy!


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it says file not found @Ishaan94

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nop i got it


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@Ishaan94 that helps a lot.....i am happy that i learnt new concept ....thxx

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since there is no change of sign it does not have any + ve roots

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is that correct

Ishaan94
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yes