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Expand the polynomial and simplify: 12a^2-4(1-2a)^2+8

Sagot :

Answer:

  • -4a² + 16a + 4

Step-by-step explanation:

Simplify:

  • 12a² - 4(1 - 2a)² + 8 =                       ⇒  expand
  • 12a² - 4( 1 - 4a + 4a²) + 8 =              ⇒  open parenthesis
  • 12a² - 4 + 16a - 16a² + 8 =               ⇒  collect like terms
  • (12- 16)a² + 16a + (8 - 4) =                ⇒  simplify
  • -4a² + 16a + 4                                  ⇒  answer

Answer:

-4a² + 16a + 4

Step-by-step explanation:

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