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2 years ago

Prime factorization of 15

Mathematics

1 answer:

VLD [36.1K]2 years ago

3 0

Answer: 3 x 5

Step-by-step explanation: To find the prime factorization of 15, first create a factor tree with two branches. Since 15 ÷ 3 = 5, we know that 3 and 5 are factors of 15. So we write 3 and 5 at the bottom of the branches.

While 1 and 15 are also factors, we don't use them in out factor tree. That's because when finding the prime factorization, we always use numbers other than 1 and the number itself.

Next, we circle any prime factors in the factor tree. Since both 3 and 5 are prime, we circle both 3 and 5. Since we have circles at the bottom of all of our branches, we are finished.

So the prime factorization of 15 is 3 x 5.

Notice that we write our prime factorization as a multiplication problem. Think of the prime factorization of a number as the prime factors of the number that you multiply together to get the original number.

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Roman55 [17]

Answer:

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Step-by-step explanation:

The right：

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The left:

$= {y}^{2} - 7x - 18y + 109$

So, after comparing the right side and the left side of this equation, we know

$b = 7$

$2c = - 18 \\ so \\ c = - 9$

${c}^{2} - ab = 109$

So,

$a = \frac{ {c}^{2} - 109}{b} = \frac{ { (- 9)}^{2} - 109}{7} = \frac{ - 28}{7} = - 4$

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2 years ago

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sergiy2304 [10]

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2 years ago

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mixas84 [53]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

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REY [17]

Answer:

Step-by-step explanation:

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2 years ago

If c=g-4f, find trinomial that represents C when F=2x^2-5 and G=5x^2+x-3

Margaret [11]

Answer:

c = -3x² + x + 17

Step-by-step explanation:

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f = 2x² - 5

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2 years ago

Prime factorization of 15​

Prime factorization of 15