Factor polynomial $$ 16w^{2}-40w+25 $$
Answer
$$ 16w^{2}-40w+25 = ( 4w-5 )^{ 2 } $$
Explanation
Both the first and third terms are perfect squares.
$$ 16x^2 = \left( \color{blue}{ 4w } \right)^2 ~~ \text{and} ~~ 25 = \left( \color{red}{ 5 } \right)^2 $$The middle term ( $ -40x $ ) is two times the product of the terms that are squared.
$$ -40x = - 2 \cdot \color{blue}{4w} \cdot \color{red}{5} $$We can conclude that the polynomial $ 16w^{2}-40w+25 $ is a perfect square trinomial, so we will use the formula below.
$$ A^2 - 2AB + B^2 = (A - B)^2 $$In this example we have $ \color{blue}{ A = 4w } $ and $ \color{red}{ B = 5 } $ so,
$$ 16w^{2}-40w+25 = ( \color{blue}{ 4w } - \color{red}{ 5 } )^2 $$This page was created using
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