SOLUTION: Can you please explain to me why (x+4)^2 is not equal to x^2+16? Thank you for taking the time to help me with this.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Can you please explain to me why (x+4)^2 is not equal to x^2+16? Thank you for taking the time to help me with this.      Log On


   

Question 495898: Can you please explain to me why (x+4)^2 is not equal to x^2+16?
Thank you for taking the time to help me with this.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
(x+4)(x+4) = x^2 + 8x + 16

Either use FOIL, Binomial theorem, or distributive property, i.e. x(x+4) + 4(x+4).