Question

Calculati:
Va rog ajutati-ma. Este urgent. Ex 39 si 40. Multumesc.

Answer 1

39.
a ) -8
b) + 81
c) +144
d) - 117 649
e) - 1
f) + 1
g)-1
h)-1
i) -125

40 .
a) (-2)³ -(-5)° +(-3)⁴ = -8+1 + 81 = 73
b) (-3)³+(-1)°-(-2)²+(-5)²= -27 -1 -4+25 = -32-25 = - 7
c) 4³:(-2)³+(-1)³= 4³:(-8) -3 = 64:(-8) -3 =-8-3 = -11
d)(-5²)+(-5)² +(-2⁴)= -25 +25 +16 = 16
e)(-8²)+(-4)²-(-10)= -64+16 +10 = -38

Answer 2

39) a) (-2)³=-8
b)(-3)⁴=81
c)(-12)²=144
d)(-7)^0=1
e)(-1)⁴³=-1
f)(-1)^28=1
g)-1^25=-1
h)-1^68=1
i)(-5)³=-75

40) a) -8-1+81=72
b)-27+1-4+25=-5
c)64:(-8)-1=-8-1=-9
d)-25+25-16=-16
e)-64+16+10=-38