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Which of the following statements is a valid polynomial identity?

Statement 1: x3 + 216 = (x − 6)(x2 + 6x + 36)
Statement 2: x3 + 216 = (x + 6)(x2 − 6x + 36)

Group of answer choices

Only statement 1 is valid.

Only statement 2 is valid.

Statement 1 and statement 2 are valid.

Statement 1 and statement 2 are invalid.

Respuesta :

mhanifa

Answer:

  • B. Only statement 2 is valid.

Step-by-step explanation:

Using identities

  • a³ + b³ = (a + b)(a² - ab + b²)
  • a³ - b³ = (a - b)(a² + ab + b²)

Applying to the given statements, we can see the second one is valid.

Correct choice is B

Answer:

Only statement 2 is valid

Step-by-step explanation:

Let's see how

[tex]\\ \rm\rightarrowtail x^3+216[/tex]

[tex]\\ \rm\rightarrowtail x^2+6^3[/tex]

[tex]\\ \rm\rightarrowtail (x+6)(x^2-6x+36)[/tex]

Hence verified

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