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mars1129 [50]
3 years ago
11

Which equation is equivalent to (2x^2+4x-7)(x-3)

Mathematics
1 answer:
Rasek [7]3 years ago
5 0

Answer:

2 x^3 - 2 x^2 - 19 x + 21

Step-by-step explanation:

Expand the following:

(2 x^2 + 4 x - 7) (x - 3)

Hint: | Multiply out (x - 3) (2 x^2 + 4 x - 7).

| | 2 x^2 | + | 4 x | - | 7

| | | | x | - | 3

| | -6 x^2 | - | 12 x | + | 21

2 x^3 | + | 4 x^2 | - | 7 x | + | 0

2 x^3 | - | 2 x^2 | - | 19 x | + | 21:

Answer: 2 x^3 - 2 x^2 - 19 x + 21

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Answer:

1

Step-by-step explanation:

PEMDAS

6/ 2(1+2)

6 divided by 2 (3)

multiply 2(3) =6

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6 0
3 years ago
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Step-by-step explanation:

When answering a problem like this, you first isolate the absolute value.  TO do this, first subtract 8 from both sides, to get –2|4–5y|=-4.  Then divide both sides of the equation to get |4–5y|=2.  The next thing you do is split the equation into 4-5y=2 and 4-5y=-2, because the contents of the absolute value could be negative or positive, and simplifying both into y = 2/5, and y = 6/5y.

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Which statements must be true according to the histogram? Check all that apply.
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Part A
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Answer:

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Step-by-step explanation:

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