Question

Hi guys
I read somewhere that in a quadratic polynomial if sign of all the terms are same then its zeroes are negative.but in the following such rule is not followed .Pls explain

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Answer 1

Answer:

Step-by-step explanation:

but the signs here are not all the same Since a = 1 , b = - 3 and c = -4.

Answer 2

in this question all terms are not of same sign

${x}^{2}$is positive. so roots will come with different signs