SOLUTION: Jesse insists that (x+2)^2 =x^2+2^2=x^2+4 and that (x+2)^3 =x^3+2^3=x^3+8. What is wrong with this and how can you convince her that this simplification is incorrect?

Question 342270: Jesse insists that (x+2)^2 =x^2+2^2=x^2+4 and that (x+2)^3 =x^3+2^3=x^3+8. What
is wrong with this and how can you convince her that this simplification is incorrect?
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
(x+2)^2=x^2+4x+4
(x+2)^3=x^3+6x^2+12x+8
.
Ed
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