Matematika Sekolah Dasar sederhanakanlah. 1. 2(3a-4)+3(a+2). 2. 6(5x+3)+4(-7x-4). 3. 7(x+2)-4(2x-5). 4. -2(-3a+1)-5(a-8).minta tolong dongksss jawabsss yaaa​

dakotawelchulv – March 09, 2023

sederhanakanlah. 1. 2(3a-4)+3(a+2). 2. 6(5x+3)+4(-7x-4). 3. 7(x+2)-4(2x-5). 4. -2(-3a+1)-5(a-8).










minta tolong dongksss jawabsss yaaa






​

Jawab:

1. 2(3a - 4) + 3(a + 2)

= 6a - 8 + 3a + 6

= 6a + 3a - 8 + 6

= 9a - 2

2. 6(5x + 3) + 4(-7x - 4)

= 30x + 18 - 28x - 16

= 30x - 28x + 18 - 16

= 2x + 2

3. 7(x + 2) - 4(2x - 5)

= 7x + 14 - 8x + 20

= 7x - 8x + 14 + 20

= -x + 34

4. -2(-3a + 1) - 5(a - 8)

= 6a - 2 - 5a + 40

= 6a - 5a - 2 + 40

= a + 38

[answer.2.content]