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solve the following quadratic equations .check the solutions.

1.ײ- 49= 0
2.9ײ-25= 0
3.4ײ+1=5
4.5(×+7)²=1 125
5.ײ=43​


Sagot :

Answer:

1. (x-7)(x-7)

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

3. doesnt factor

4. 5(x-8)(x+22)

5. doesnt factor

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