Sum and Product of the roots of Quadratic Equation

What is the formula in finding the SUM of the roots of quadratic equation?

• 
  

  $-\frac{b}{a}$

• $\frac{c}{a}$
  

What is the SUM of the roots of quadratic equation x² + 13x + 42 = 0?

• -42

• -13

• 13

• 42

What is the PRODUCT of the roots of x² – 15x + 26 = 0?

• -26

• -15

• 15

• 26

Determine the SUM of the roots of the given quadratic equation below:

 $3x^2+11x-4=0$  

•  $-\frac{11}{3}$ 

•  $\frac{11}{3}$  

•  $-\frac{4}{3}$  

Determine the PRODUCT of the roots of the given quadratic equation below:

$3x^2+11x-4=0$

• $-\frac{11}{3}$

•  $-\frac{4}{3}$ 

• $\frac{4}{3}$

Determine the SUM of the roots of the given quadratic equation below:

 $4x^2-9x+1=0$  

•  $\frac{9}{4}$  

•  $\frac{1}{4}$  

•  $-\frac{9}{4}$  

Determine the PRODUCT of the roots of the given quadratic equation below:

 $4x^2-9x+1=0$  

•  $\frac{1}{4}$  

•  $\frac{1}{9}$  

•  $-\frac{1}{4}$  

Determine the SUM of the roots of the given quadratic equation below:

 $14x^2+3x-5=0$  

•  $-\frac{5}{14}$  

•  $\frac{3}{14}$  

•  $-\frac{3}{14}$  

Determine the PRODUCT of the roots of the given quadratic equation below:

 $14x^2+3x-5=0$  

•  $-\frac{5}{14}$  

•  $\frac{5}{14}$  

•  $\frac{3}{14}$  

Determine the SUM of the roots of the given quadratic equation below:

 $4x^2+6x-1=0$  

•  $-\frac{3}{2}$  

•  $\frac{3}{2}$  

•  $-\frac{1}{4}$