Respuesta :

mathmate
Simplify and solve quadratic equation:

[tex]2x^2+8x=x^2-16 => x^2+8x+16 => (x+4)^2=16 => x={-4,-4}[/tex]
So numerically the only solution is x=-4.

However, mathematically, there are two solutions, {-4,-4}, or x=4,multiplicity 2.
amin282

Answer:

(-4,-4)

Step-by-step explanation:

good job