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valina [46]
3 years ago
9

What polynomial identity should be used to prove that 19 = 27 - 8? Difference of Cubes. a. Difference of Squares. b. Square of B

inomial. c. Sum of Cubes
Mathematics
2 answers:
Daniel [21]3 years ago
4 0
The answer is <span>Difference of Cubes.

Difference of cubes is </span>a³ - b³.<span>
27 can be written as 3</span>³ (= 3 × 3 × 3 = 27). So, a = 3.
8 can be written as 2³ (= 2 × 2 × 2 = 8). So, b = 2.

Difference of cubes can be expressed as:
       a³ - b³ = (a - b)(a² + ab + b²)
⇒   3³ - 2³ = (3 - 2)(3² + 3×2 + 2²) = 1 × (9 + 6 + 4) = 1 × 19 = 19
⇒  27 -  8  = 19
ExtremeBDS [4]3 years ago
3 0

Answer:

Difference of Cubes

Step-by-step explanation:

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Answer:

Step-by-step explanation:

We can plug this into a formula and get

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8 0
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17. You roll a number cube. How likely is it that you will roll a number less than 7? <br> Explain
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Answer:

1 or 100%.

Step-by-step explanation:

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(x^2 - 8x + 5)-(-3x^2 + 5x-9)

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