math
posted by valua patterson .
If the sum of the roots of 2 x squared  6 x + 7 equals zero is multiplied by the product of its roots the result is

for 2x^2  6x + 7 = 0
the sum of the roots = b/a = 6/2 = 3
product of the roots = c/a = 7/2
so (7/2)(3) = 21/3