Question

resolva:
a)(-3)elevado à 2 -2(-3)-6=


b)(-½)elevado à 2 -2 (-½)-6=


c)(-¾) elevado à 2 -2(-¾)-6=

Answer 1

a) (-3)² -2(-3) - 6
9 + 6 - 6
R = 9


b) (-½)² - 2(-½) - 6
2/4 + 2/4 - 6
4/4 + 6
4/4 + 24 = 30/4
30/4:2 = 15/2
R = 15/2

c)(-¾)² - 2(-¾) - 6
9/16 +6/8 - 6/1
9/16+12/16 -96/16
21/16 - 96/16
R = -75/16