xvikee
xvikee xvikee
  • 17-12-2019
  • Mathematics
contestada

Which expression is equivalent to 8a3 + c3?

Respuesta :

hyperrspace
hyperrspace hyperrspace
  • 17-12-2019

I'm assuming we factor...

The answer is (2a + c)(4a^2 - 2ac + c^2.)

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jimrgrant1 jimrgrant1
  • 17-12-2019

Answer:

(2a + c)(4a² - 2ac + c²)

Step-by-step explanation:

8a³ + c³ ← is a sum of cubes and factors in general as

a³ + b³ = (a + b)(a² - ab + b²)

Given

8a³ + c³

= (2a)³ + c³

= (2a + c)((2a)² - 2ac + c²), that is

= (2a + c)(4a² - 2ac + c²)

Answer Link

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