Question

Q.

Jika :
a = 3
b = 8 × a
c = 2 + a × b
d = 10 + a - b + c
Tentukan :
1.) a + b - c + d × d + c
2.) d × c + b - a ÷ a + b
_______
hmm... bsa gk y jwb soal ini cma 60 detik/1 menit atau malah bisa kurang dari itu ?​

Answer 1

• a = 3.
• b = 8 × a = 8 × 3 = 24.
• c = 2 + a × b = 2 + ( 3 × 24 ) = 74.
• d = 10 + a - b + c = 10 + 3 - 24 + 74 = 63.

• Penyelesaian Nomor 1

• Penyelesaian Nomor 2

• Terlampir.

#Koreksi.

Answer 2

a = 3

b = 8 × 3

b = 24

c = 2 + 3 × 24

c = 2 + 72

c = 74

d = 10 + 3 - 24 + 74

d = 13 - 24 + 74

d = -11 + 74

d = 63

maka :

a + b - c + d × d + c

3 + 24 - 74 + 63 × 63 + 74

3 + 24 - 74 + 3.968 + 74

27 - 74 + 3.968 + 74

-47 + 3.968 + 74

3.921 + 74

= 3.995

d × c + b - a : a + b

63 × 74 + 24 - 3 : 3 + 24

4.662 + 24 - 1 + 24

4.686 - 1 + 24

4.685 + 24

= 4.709