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Factorize:$x(x – 2) (x – 4) + 4x – 8$
Given :
$x(x – 2) (x – 4) + 4x – 8$
To do :
We have to factorize the given expression.
Solution :
$x(x - 2) (x - 4) + 4x - 8 = x(x - 2) (x - 4) + 4(x - 2)$
$= (x - 2) [x(x - 4) + 4]$
$= (x - 2) (x^2 - 4x + 4)$
$= (x - 2) [(x)^2 - 2 \times x \times 2 + (2)^2]$
$= (x - 2) (x - 2)^2$
$= (x - 2)^3$
Hence, $x(x - 2) (x - 4) + 4x - 8 = (x - 2)^3$.
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