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Aleks [24]
2 years ago
14

Factor completely x^2-4

Mathematics
2 answers:
umka2103 [35]2 years ago
3 0

Answer: (x + 2) (x - 2)

Step-by-step explanation:

Solnce55 [7]2 years ago
3 0

Answer:

(x + 2) (x - 2)

Step-by-step explanation:

Given the quadratic expression,  x² - 4:

Use the <u>Difference of squares</u> factoring formula:

u² - v² = (u + v)(u - v)

Determine what are possible factors that could have a product of -4:

Since -2 × 2 = -4, these can be used as factors.

Therefore, the factors of the quadratic expression, x² - 4 are:

(x + 2) (x - 2)

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Ghella [55]

Answer:

6000(cm)^{3}

Step-by-step explanation:

30 \times 10 \times 20

300 \times 20

6000(cm)^{3}

<h3>Hope it is helpful...</h3>
5 0
3 years ago
Four members from a 50 person committee are to be randomly selected to serve as chairperson, vicechairperson, secretary, and tre
alexdok [17]

Answer:

So, exists 5527200 different leadership structures.

Step-by-step explanation:

We know that four members from a 50 person committee are to be randomly selected to serve as chairperson, vicechairperson, secretary, and treasurer. The first perosn to be selected is the chairperson, the second to be selected as vice chairperson, the third is secretary, and the fourth is treasurer.

Since the order of the people is important to us, we have the following:

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3 0
3 years ago
What is 8% of 40 as a decimal
vladimir2022 [97]

Answer:

The answer is <u>3.2</u>

Step-by-step explanation:

  • <em>8 x 40</em>
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  • <em> = 3.2</em>
4 0
2 years ago
Complete the inequality statement <br><br> 7/10 ___ 11/20 <br><br> &gt; &lt; =
densk [106]
To start, give each fraction a common denominator by multiplying the 7/10 by two to get 14/20, an equivalent but not simplified fraction. now compare 14/20 and 11/20. 14/20 is greater than 11/20, so 7/10 > 11/20.
7 0
4 years ago
You start with $200 in a checking account each month you withdraw $20. Write an equation to model the amount of money in the che
Rudik [331]

y=the amount of money in the checking account

x=number of months

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6 0
3 years ago
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