The Sum of the roots of the quadratic equation $4x^2+7x-21=0$ is:

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A $-\frac{21}{4}$

B-21

C $\frac{7}{4}$

D $-\frac{7}{4}$

Answer:

-\frac{7}{4}

$4x^2+7x-21=0$

Sum of roots of the quadratic equatio is $\frac{-b}{a}$

$=\frac{-7}{4}$

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