Question

Pls help


On the photo

Answer 1

section a:

1. x = -2, -3

2. x = 3,
`-(3)/(4)`

3. x =
`(5)/(2),-(2)/(3)`

4. x = -2,4

5. x=3, 1/2

6. 4/3, -4

section b

1.x=-3,-5

2. x= 4,3

3. x = 5

4. x =-4,-7

5. x=6,-5

6. x=2,-13

7. x=8,-3

8. x= -2, -7

9. x= 16, 2

10. x= 9,8

Explanation:

section a:

1.

(x + 2)(x + 3)= 0

x + 2 = 0 x + 3 = 0

x + 2 - 2 = 0 - 2 x + 3 - 3 = 0 - 3

x = -2 x = -3

2.

(4x + 3)(x - 3)=0

4x + 3 = 0 x - 3 = 0

4x + 3 - 3 = 0 - 3 x - 3 + 3 = 0 + 3

4x = -3 x = 3

4x = - 3 / 4

x =
`-(3)/(4)` x = 3

3.

(2x-5)(3x+2)=0

2x-5=0 3x+2=0

2x-5+5=0+5 3x+2-2=0-2

2x= 5 3x=-2

2x=5/2 3x=-2/3

x= 5/2 x=
`-(2)/(3)`

4.

(4x+8)(2x-8)=0

4x + 8 = 0 2x - 8= 0

4x = -8 2x = 8

4x = -8/ 4 2x=8/2

x=-2 x=4

5.

(5x-15)(4x-2)=0

5x-15=0 4x-2=0

5x = 15 4x=2

5x = 15 /5 4x=2/4

x=3, 1/2

6.

(9x-12)(5x+20)=0

9x -12=0 5x+20=0

9x=12 5x=-20

9x = 12/ 9 5x= -20/5

x= 4/3 x = -4

Answer 2

Answer:Sect A

1)X1=-3,X2=-2

2)X1=-3/4,X2=3

3)X1=-2/3,X2=5/2

4)X1=-2,X2=4

5)X1=1/2,X2=3

6)X1=-4,X2=4/3

Answer: Sect B

1)X1=-5,X2=-3

2)X1=3,X2=4

3)X1=-5,X2=3

4)X1=4,X2=7

5)X1=-5,X2=6

6)X1=-13,X2=2

7)X1=-3,X2=8

8)X1=-7,X2=-2

9)X1=2,X2=16

10)X1=8,X2=9