Question:
Find the product:
(4x + 9) × (x − 6)
Solution:
By horizontal method:
$(4 x+9) \times(x-6)$
$=4 x(x-6)+9(x-6)$
$=4 x^{2}-24 x+9 x-54$
$=4 x^{2}-15 x-54$
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