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Answered

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Sagot :

Answer:

1. (x - 4) (x + 2)

2. (x + 1) (x - 5)

3. (x + 7) (x - 1)

4. (x + 3) (x + 3)

5. (x + 11) (x - 1)

Step-by-step explanation:

1. x^2 - 2x - 8

(x - 4) (x + 2)

x^2 + 2x - 4x - 8

x^2 - 2x - 8

2. x^2 - 4x = 5

x^2 - 4x - 5 = 5 - 5

x^2 - 4x - 5 = 0

(x + 1) (x - 5)

x^2 - 5x + x - 5

x^2 - 4x - 5

3. x^2  + 6x - 7 = 0

(x + 7) (x - 1)

x^2 - x + 7x - 7

x^2 + 6x - 7

4. x^2 + 6x + 9

(x + 3) (x + 3)

x^2 + 3x + 3x + 9

x^2 + 6x + 9

5. x^2 + 10x - 11 = 0

(x + 11) (x - 1)

x^2 - x + 11x - 11

x^2 + 10x - 11

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