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Slav-nsk [51]
3 years ago
9

Write a simplified polynomial expression to represent the area of the rectangle

Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0
The answer is A = 2x² + 6x - 20
 
The area of the rectangle is:
A = l * w

l = x + 5
w = 2x - 4

A = (x + 5)(2x - 4)

Use the distributive property to calculate this:
A = (x + 5)(2x - 4)
A = x * 2x + x * (-4) + 5 * 2x + 5 * (-4)
A = 2x² - 4x + 10x  - 20
A = 2x² + 6x - 20
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Answer:

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Step-by-step explanation:

Given the 2 equations

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