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Flura [38]
2 years ago
14

Factor out the common factor. 2x4 + 5x3 – 8x –20 (x3 + 4)(–2x – 5) (x3 – 4)(2x + 5) (x3 + 4)(2x + 5)

Mathematics
2 answers:
Brums [2.3K]2 years ago
7 0

Answer:

(x^3-4)(2x+5)

Step-by-step explanation:

2x^4 + 5x^3 - 8x -20

To factor this we use grouping method

(2x^4 + 5x^3)+(- 8x -20)

Take out GCF from each group. x^3 is the GCF for first group and -4 is the GCF from second group

x^3(2x+5)-4(2x+5)

Now we factor out 2x+5

(x^3-4)(2x+5)

horsena [70]2 years ago
4 0

Answer:

The common factor is (x3 – 4)(2x + 5)

Step-by-step explanation:

1. find gcf

2. factor out the gcf

3. use grouping

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3 years ago
Select a composite number to break into factors. Continue factoring until all factors are prime
Sladkaya [172]

Answer:

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Step-by-step explanation:

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Can you help me please.
Kamila [148]

9514 1404 393

Answer:

  a.  (-1/2, 5)

Step-by-step explanation:

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This matches only answer choice A.

__

<em>Check</em>

The other part of answer choice A is x = -1/2. We can test this to make sure it works:

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