Find the sum and product of the roots. 3x^

2 - 4x - 7 = 0

Given the quadratic function, to get the roots we factorize:

3x²-4x-7=0

3x²+3x-7x-7=0

3x (x+1) - 7 (x+1) = 0

(3x-7) (x+1) = 0

thus the roots are

x=-1 or x=3/7

thus the sum of the roots will be:

-1+3/7

=-4/7