1. x²-6x-7=0 2. 2x²-7x+5=0 3. x²-4x+2=0
Matematika
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Pertanyaan
1. x²-6x-7=0
2. 2x²-7x+5=0
3. x²-4x+2=0
2. 2x²-7x+5=0
3. x²-4x+2=0
1 Jawaban
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1. Jawaban GustamaAD
1. (x-7)(x+1) = 0
x = 7 , x = -1
2. (2x-5)(x-1) = 0
x = 5/2 , x = 1
3. x = 2 - \/2
x = 2 + \/2