Question

Sa ma ajute cineva !
Dau coroana ,mulțumesc frumos!!

Answer 1

Răspuns:

1.a)4-12=-8

b)-3-7=-10

c)7-5=2

d)-6-8=-14

2.a)-5×6=-30

b)-7×(-3)=21

c)42:(-7)=-6

d)72×9=648

3.a)(-7)²=49

b)(-2)³=-8

c)(-1)²⁰²⁰=1

d)-6²=-36

4.a)(7+3×4)-(5+5×4)=(7+12)-(5+20)

19-25=-6

b)-3[2-(-6)²:(-9)]-2×[6-(-8)]=

-3[2-36:(-9)]-2×(6+8)=

-3(2+4)-2×14=-18-28=-46

c)[(-5)²(-1-4)⁴(3-8)³]⁵:(-5)⁴³=

[5²×5⁴×(-5)³]⁵:(-5)⁴³=(-5⁹)⁵:(-5)⁴³=

(-5)⁴⁵:(-5)⁴³=(-5)²=25

d)[-25:(-5)+27:(-9)]×3=

(5-3)×3=2×3=6

e[-3)²⁹:3²⁸+2×(-5)]:13+(-11)⁰

(-3-10):13+1=-13:13+1=1+1=2

f)[l-3²+(-3)³l-(-3)+(-2)×(4-6)]:(-3)=

[3²l-1-3l+3-2(-2)]:(-3)=

(3²×4+3+4):(-3)=(36+7):3=39/3

bonus

(-5)²⁰⁵¹(5×5²×5³×5⁴...5⁹⁹×5¹⁰⁰)=

-5²⁰⁵¹×(5¹+²+³+...+⁹⁹+¹⁰⁰)

1+2+3+...99+100=100×101/2=

50×101=5050

E=-5^(2051+5050)=5^⁷¹⁰¹