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Rudik [331]
3 years ago
5

Find the difference.

Mathematics
1 answer:
MrMuchimi3 years ago
3 0

To find the difference of the given expression, first step is to get rid of parenthesis. So, distribute negative sign to each terms of the second parenthesis. Hence,

(9x² + 10x + 4) - (9x² + 5x - 1)

= 9x² + 10x + 4 - 9x² - 5x + 1.

= (9x² - 9x²) +(10x - 5x) + (4 + 1) Group the like terms.

= 0 + 5x + 5 Combine the like terms.

= 5x + 5.

So, first choice is correct.

Hope this helps you!

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Answer:

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Here, according to the question:

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Answer:

a. 20.5

Step-by-step explanation:

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