Matematika tolong di bantu kawan kawan..Terimakasih ​

Electric Scooter for Kids Corona California – March 05, 2023

tolong di bantu kawan kawan..
Terimakasih ​

Penjelasan dengan langkah-langkah:

Nomor 1 :

A u B = {1,2,3,4,5,6,7,8}

Nomor 2 :

A = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}

B = {2,4,6,8,10,12,14,16,18}

A n B = {2,4,6,8,10,12,14}

Nomor 3 :

a) 2x + 4y = 16

2(-2) + 4y = 16

-4 + 4y = 16

4y = 20

y = 5

b) 2x + 4y = 16

2x + 4(0) = 16

2x = 16

x = 8

Nomor 4 :

3a + 2,5b = 120

Nomor 5 :

x² - 4x = 0

x = (-b ± √(b²-4ac))/2a

x = (4 ± √16)/2

x = (4 ± 4)/2

x1 = 4 + 4 / 2 = 8 / 2 = 4

x2 = 4 - 4 / 2 = 0 / 2 = 0

Nomor 6 :

x = (10 ± √100-96)/2

x = (10 ± √4)/2

x = (10 ± 2)/2

x1 = 10 + 2 / 2 = 12 / 2 = 6

x2 = 10 - 2 / 2 = 8 / 2 = 4

Nomor 7 :

210 - 2x = 42

210 - 42 = 2x

2x = 168

x = 84

Nomor 8 :

23x - 1 = 4x + 5

23x - 4x = 1 + 5

19x = 6

x = 6/19

Nomor 9 :

Maaf, tidak bisa

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