Subtract:
$- c^{2} + 5 c$
$- 4 c^{2} + 8 c - --------- -$

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Solution

Solution -
$- c^{2} + 5 c$
$- 4 c^{2} + 8 c - --------- -$

$= - c^{2} - (- 4 c^{2}) + 5 c - 8 c$

$= - c^{2} + 4 c^{2} + 5 c - 8 c$

$= 3 c^{2} - 3 c$

$= 3 c (c - 1)$

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