Question

Find the sum and product of the roots of the quadratic equation $5x^2-2x-7=0$

Answer 1

Here $a=5,b=-2,c=-7$

Sum of the roots$=\frac{-b}{a}=\frac{-(-2)}{5}=\frac{2}{5}$

Product of the roots$=\frac{c}{a}=\frac{-7}{5}$