1. x²-x-2 = 0

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2. x² + 7x + 12 = 0
3. x² – 8x + 15 = 0
4. 2x² – 7x + 6 = 0
5. 2×2 – 3x-2 = 0
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1. x²-x-2 = 0

Jawaban:

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

x=2 || x=-1

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

x=-3 || x=-4

3. (x-5)(x-3)

x=5 || x= 3

4. (2x-4)(2x-3)

x=2 || x=3/2

5. (2x-4)(2x+1)

x=2 || x= -1/2