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Polynomial and Its General Form

Simplify the ...

Question

Simplify the expression
$x + 7 + 4 (x - 5)$

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Solution

$x + 7 + 4 (x - 5)$ $[a (b - c) = a b - a c]$
$\Rightarrow x + 7 + 4 x - 20$
$\Rightarrow 5 x - 13$ .

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