Answers

  • Brainly User
2015-10-13T07:00:18+08:00
1)  4 + 2 = 6
2)  3(4) + 20 = 12 + 20 = 32
3)  -(4)(2)(3) - 2 (4)(3) = -24 - 24 = -48
4) 11(4)(2)² (3) - 2 (4)(3) =  (44) (4)(3) - 24 = 528 - 24 = 504

5) a² - 2bc = (4)² - 2 (2)(3) = 16 - 12 = 4
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