How do you multiply $(2x+1)(2x+1)$ ?

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Answer 1 · 2015-08-05T01:35:23

$4x^2 + 4x + 1$

$f(x) = (2x+1)(2x+1)$

Multiplying each element of the first term by each element of the second will get you

$f(x) = 4x^2 + 2x +2x +1$

$" "= 4x^2 + 4x +1$

How do you multiply (2x+1)(2x+1)(2x+1)(2x+1)?