Question

Given f(x)=x^2 +3x -18 solve: f(x)>0

Answer 1

@experimentX ? is it infinite no of solution

Answer 2

you have a parabola that opens up, so it will be positive outside the zeros and negative between them. your first job is to find them

Answer 3

\[x^2 +3x -18=0 \]
\[(x+6)(x-3)=0\]
\[x=-6,x=3\] so your answer is
\[x<-6\] or
\[x>3\]

Answer 4

:)