# Binomials

To binomial
$36x2-168x$
add a number to the resulting trinomial be square of binomial.

Result

x =  196

#### Solution:

$x = \dfrac{ (-168)^2 } { 4\cdot 36} = 196 \ \\ 36x^2-168x + 196 = (6x -14)^2$

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