Examine the continuity of the function f (x) = x3 + 2×2 – 1 at x = 1

since, \[y\text{ }=\text{ }f\left( x \right)\] will be continuous at \[x\text{ }=\text{ }a\] if,

hence, f(x) is continuous at $$ \[x\text{ }=\text{ }1.\]