Algebra ll / 10th grade

Question

x2+2x

Answer 1

What about it...

x^2 + 2x = x(x+2) is a quadratic function

The solutions are x=0 and x=-2

the axis of symmetry is x=-1 and the vertex is (-1,-1)

Answer 2

The missing constant term is 1. So you'd write your function as x²+2x+1