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irinina [24]
3 years ago
6

(4p2 - 5p - 4) + (5p2 - 4-2p)​

Mathematics
2 answers:
Rasek [7]3 years ago
5 0

Answer:

9p^2 - 7p - 8

Hope this helps! Can I have BRAINLIEST please?

Strike441 [17]3 years ago
4 0

Answer:

Answer = 11p - 8

Step-by-step explanation:

(4px2 - 5p - 4) + (5px2 - 4 -2p)

(8p - 5p - 4) + (10p-4 - 2p)

(3p - 4) + (10p -4 -2p)

3p - 4 + 8p - 4

3p + 8p = 11p  

4+4 = 8

Answer 11p - 8

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The expression below represents the perimeter, in feet, of Manual’s garden.
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a) Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7

b) The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as 98 square feet

<h3>What is the perimeter?</h3>

The perimeter is defined as the sum of all the sides of the figure. Now we have The area in, square feet, of Shawn’s garden is found be calculating 15(2x + 7). Shawn incorrectly says the area can also be found using the expression 30x + 7.

The correct area =15(2x + 7).

= 30x + 105 square feet

The error in Shawn’s expression is

= 15(2x + 7)

= 30x + 7 square feet

Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7

The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as

30x + 105 square feet - 30x + 7 square feet

= 30x + 105 - (30x + 7)

= 30x - 30x + 105 - 7

= 98 square feet

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