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Novay_Z [31]
2 years ago
5

I dont get this one i usually know em but both anwers the same

Mathematics
1 answer:
Serga [27]2 years ago
6 0

Answer:

what is the question. I'm confused

Step-by-step explanation:

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How? (2x^2 - 3x - 4)(x + 7)<br>​
lidiya [134]

Answer:

2 {x}^{3}  +  11{x}^{2}  - 25x - 28

Step-by-step explanation:

Using foil method, Multiply the first term

2 {x}^{2}  \times x = 2 {x}^{3}

Next, Multiply the Outer term in each parenthesis. (2x^2 and 7

2 {x}^{2}  \times 7 = 14 {x}^{2}

2 {x}^{2}  \times 7 = 14 {x}^{2}  \:  \:  \: 3x \times  - x =  - 3x

Then, Multiply the Inner Terms (-3x,-4,7) in each parenthesis

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- 4 \times x =  - 4x

Then multiply the last term (-4 and 7).

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Combine it you have

2 {x}^{3}  + 14 {x}^{2}   - 3 {x}^{2}  - 21x - 4x - 28

which simplify to

2 {x}^{3}  + 11 {x}^{2}  - 25x - 28

3 0
3 years ago
79%
REY [17]

9514 1404 393

Answer:

  0

Step-by-step explanation:

The two expressions for her salary can be equated:

  2h +4 = 4 +4h

  0 = 2h . . . . . . . . subtract 2h+4 from both sides

  h = 0 . . . the husband's salary is zero dollars per month

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