Which of the following are quadratic equations ?
1) √3x2-2x+1/2= 0
2) x-3/x= x2
3) 2x2-√3x+9= 0
4) x2-2x-√x-5= 0
5) 3x2-5x+9= x2-7x+3
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Answer:
Question number 5 is the form of ax2+bx+c
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