Find the nature of the given quadratic equation 7x2+2x+1=0 – InterviewSolution

1.

Find the nature of the given quadratic equation 7x2+2x+1=0

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Answer:

Roots are not real

Step-by-step explanation:

$7x^2 + 2x+ 1 = <klux>0</klux>\\$

Comparing with STANDARD quadratic equation $ax^2 + bx+c$ we get

a= 7

b=2

c=1

Discriminant = $b^2-4ac$

$2^2 - 4(7)(1)$

$4-28\\-24$

-24 < 0

Therefore roots are not real

Hope it helps you

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