Algebra-find product-2

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Find the product.

1. {1/3 x + 4} {-1/2 x - 11}

Solution : {x/3 + 4} {-x/2 - 11}

= - x² / 6 – 11x / 3 – 2x – 44

= -x² / 6 – 17x / 3 – 44

2. x(x + 3)

Solution : x(x + 3)

= x² + 3x