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FranciscoCorradini FranciscoCorradini
  • 11-06-2015
  • Mathematics
Answered



What is the value of the expression 3a2 - 4|a| + 6 when a = -3?

(1) -24 (3) 21

(2) -9 (4) 45

Verified Answer :

Panoyin
Panoyin Panoyin
  • 14-06-2015

3a² - 4|a| + 6
3(-3)² - 4|-3| + 6
3(9) - 4(3) + 6
27 - 12 + 6
15 + 6
21

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