Question

The sum and product of the roots of a quadratic equation are -2/5 and -1/10, respectively. What is the equation?
A.5x^2+2x-2=0
B.5x^2-2x+2=0
C.10x^2+4x-1=0
D.10x^2-4x+1=0

Answer 1

vieta's formula says
for the equation ax^2 + bx + c =0
with roots r1,r2

r1 + r2 = -b/a
r1*r2 = c/a

Answer 2

thank you