Question

.Repede,am nevoie urgent,tot și dau 50 de puncte+coroană!!​
35.b)5²-4:7+20-4²:7=1
c)-14+5:3²-2:3+14-25:10=-2
d)4³:3³+5-7:5-3²×5-2²:25=-2​​

Answer 1

Explicație pas cu pas:

35.

b)5²-4:7+20-4²:7=1

[(25 - 4) : 7 + 20 - 16] : 7 = 1

(21 : 7 + 20 - 16) : 7 = 1

(3 + 20 - 16) : 7 = 1

7 : 7 = 1

1 = 1

d)4³:3³+5-7:5-3²×5-2²:25=-2

{[64 : (27 + 5) - 7] : 5 - 9 × 5 - 4} : 25 = -2

[(64 : 32 - 7) : 5 - 45 - 4] : 25 = -2

[(2 - 7) : 5 - 49] : 25 = -2

(-5 : 5 - 49) : 25 = -2

(-1 - 49) : 25 = -2

(-50) : 25 = -2

-2 = -2

Answer 2

Răspuns:

b)5²-4:7+20-4²:7=1

[(25-4):7 + (20-16)]:7=1

[21:7+4]:7=1

7:7=1

1=1

d)4³:3³+5-7:5-3²×5-2²:25=-2

64:( 27+5)-7:5-9×5-4:25=-2

64:32-7:5-45-4:25=-2

(2-7): 5- 49:25=-2

(-1-49):25=-2

-50:25=-2

-2=-2