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Flauer [41]
3 years ago
10

What is the product of 2x - 5 and 3x2 + 5x - 7? Write your answer in standard form. Show your work. Is the product of 2x – 5 and

3x2 + 5x - 7equal to the product of 5x – 2 and 3x2 + 5x - 7? Explain your answer.
Mathematics
1 answer:
Lesechka [4]3 years ago
5 0

Answer:

a) 6x³ − 5x² − 39x + 35

b) no

Step-by-step explanation:

(2x − 5) (3x² + 5x − 7)

Distribute:

3x² (2x − 5) + 5x (2x − 5) − 7 (2x − 5)

Distribute again:

6x³ − 15x² + 10x² − 25x − 14x + 35

Combine like terms:

6x³ − 5x² − 39x + 35

5x − 2 is the opposite of 2x − 5, so you would get the negative of the answer from part (a).

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16. The model represents an equation.
nekit [7.7K]

Answer:

The answer is below

Step-by-step explanation:

The model is not given, but I would attached a model and show you how to solve.

Solution:

An equation is a mathematical statement that makes two expressions to be equal to each other. Models can be used to represent equations through the use of various forms such as tiles model, balance scale model, cups and counter model, and so on.

From the model attached, we can form an equation. The equation is given as:

(5 * x) + (-1 * 9) = (-x * 3) + (1 * 20)

5x  + (-9) = -3x + (20)

5x - 9 = -3x + 20

collecting like terms:

5x + 3x = 20 + 9

Simplifying:

8x = 29

8x/8 = 29 / 8

x = 29 / 8

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3 years ago
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X=14. Martin must be 8. 8+14=22.
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What two numbers multiply to get 7 and add to get -8
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Answer:

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