Question

This is a practice assignmentFind the value of n to obtain the perfect square trinomial

Answer 1

In order to have a perfect square trinomial, we need to find the value of n

$a^2+2ab+b^2$

´where

a=x

b=-20

so

$\begin{gathered} x^2+2(-20)x+(-20)^2 \\ x^2-40x+400 \end{gathered}$

the value of n=400

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