The quadratic equation 2x^2 + (p+1)x + 8 = 0 find possible values of p.
thanks
Use the quadratic equation.
is restricted by the radical or discriminant in order for x to have real solutions.
You have to test the three values that are less than -9, between -9 and 7, and greater than 7 to see which sub domains hold for the inequality.
It turns out that OR