Find the sum of the solutions of 2x^2+7x-4=0
Hello guest!
We use vietas formula for the sum of roots, this formula states
$r_1+r_2=-b/a$
in this quadratic
$a=2$
$b=7$
$c=-4$
the sum of the roots is $-b/a$ so that means it is equal to
$-7/2$
