$$- ( y + 13 ) \cdot ( 135 x - y + 4 ) =$$
$-\left(y+13\right)\left(135x-y+4\right)$
$$\left(-y-13\right)\left(135x-y+4\right)$$
$$-135yx+y^{2}-4y-1755x+13y-52$$
$$-135yx+y^{2}+9y-1755x-52$$
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$-135xy-1755x+y^{2}+9y-52$