how many solutions are real?
posted by wi on .
I am stuck on this question. y=x^2+4x and y^2= 25x^2+20x+3
how many of the solutions are real? and how many of the real roots are positive and how many are negative?
thank you for any suggestions
I suggest you solve for the roots.
y=x(x+4) At y=0, what are the roots?