Find the sum of the roots of the quadratic equation 7x² + 28x + 1 = 0.

Correct option is D

Given : 

$$7x^2+28x+1=0$$​​

​Concept Used: ​

General form :-  $$ax^2+bx+c=0$$ 

the sum of the roots ($S$) is given by:​

​$$S=-\frac{b}{a}$$ 

Solution: 

Equation:

 ​$$7x^2+28x+1=0$$   

Here, $a=7$, $b=28$, and $c=1$.​

Substitute these values into the formula: 

$$S=-\frac{28}{7}$$= - 4

The sum of the roots of the quadratic equation  $$7x^2+28x+1=0$$ is   - 4 .​

The correct answer is option ( d ) -4

S=−287S = -\frac{28}{7}