Question

Maaf tolong bantu jawab ya hehe besok udah di kumpul di sekolah :D makasih sebelumnyaa

1. 5 (3x - 2) =
2. 7a (a + 5) =
3. (2a + 5) (7a - 3) =
4. (4x - 5) (4x + 5) =
5. (6y + 1) (6y - 1) =
6. (3a + 5) =

makasih bangettt

Answer 1

1. 5 (3x - 2) = 15x-10
2. 7a (a + 5) = 7a^2+35a
3. (2a + 5) (7a - 3) = 14a^2+29a-15
4. (4x - 5) (4x + 5) = 16x^2-25
5. (6y + 1) (6y - 1) = 6y^2-1
6. (3a + 5) = 3a+5

Answer 2

1. 5 (3x - 2) = 15x - 10

2. 7a (a + 5) = 7a² + 35a

3. (2a + 5) (7a - 3) = 14a² - 6a + 35a - 15
                           = 14a² + 29a - 15
 
4. (4x - 5) (4x + 5) = 16x² + 20x - 20x - 25
                           = 16x² - 25

5. (6y + 1) (6y - 1) = 36y² - 6y + 6y - 1
                           = 36y² - 1

6. (3a + 5)²  = (3a + 5) (3a + 5)
                  = 9a² + 15a + 15a + 25
                  = 9a² + 30a + 25

semoga membantu............