what is the fact of
2x^2+34x-141
since, it's not factorable, use qudratic formula:
x = [-b +- sqrt(b^2-4ac)]/(2a)
where a=2, b=34, c=-141
x = [-34 +- sqrt(1156-4*2*(-141)]/(2(2))
x = [-34 +- 2*sqrt(571)]/4
x = (1/2)(-17-sqrt(571)) ; and
x = (1/2)(-17+sqrt(571))
so there,, :)