2 solutions. This is because the parabola will cross the x axis twice. We know this because -5 means the vertex will be 5 units below the x axis. and the parabola opens upwards because the first coefficient is positive. Hope this helped :)
Largest exponent in a polynomial is called it’s Degree
Vertex is (-5,-10) y intercept of g is (0,-1) zeroes of h are x=-3,1