Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

Mathematics

1 answer:

Stells [14]3 years ago

7 0

Answer:

$5x^{2} -18x-8$

Step-by-step explanation:

The formula for area of a rectange is lw, where l is length and w is width. Since x-4 and 5x+2 are the sides, we can multiply them together to give us the area. We do (x-4)(5x+2). We use the FOIL method (First Outside Inside Last) and get 5x^2-18x-8.

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