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Lilit [14]
3 years ago
8

How would the sum of cubes formula be used to factor x3y3 + 343? Explain the process. Do not write the factorization.

Mathematics
2 answers:
Triss [41]3 years ago
4 0
The sum of cubes formula:
a³ + b³ = ( a + b ) ( a² - a b + b² )
x³ y³ = ( x y )³ and 343 = 7³
x³ y³ + 343 = ( x y )³ + 7³ = ( x y + 7 ) ( x² y² - 7 x y + 49 )
olga_2 [115]3 years ago
3 0

To factor, first identify the quantities that are being cubed. The first term is the cube of xy, and the constant is the cube of 7. Next, use the formula to write the factors. The first factor is the sum of xy and 7. The second factor has three terms: the square of xy, the negative of 7xy, and the square of 7.

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3 years ago
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7.06 x 10^(-7) ft 3

Step-by-step explanation:

We have the formula to calculate the volume of an octagonal Pyraamid as following:

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The height of the pyramid is the length of the line segment which is perpendicular to the base - which is the red line.

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So we have:

<em>Volume of octagonal pyramid = 1/3 * Area of the base * Height</em>

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<em />

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6 0
3 years ago
a cube has sides with the following number: 3,3,6,9,,7,8. what is the probability of getting a factor of 9 when rolled?
muminat

Answer:

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Step-by-step explanation:

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