Answer:
1. 4x²-11x-7=0 a=4 b=-11 c= -7
2.5x²-3x=0 a=5 b= -3
3. x²+x-7=0 a=1 b=1 c= -7
4.x²-14x+52 a=1 b= -14 c=52
5.y²-18y+31 a=1 b= -18 c=31
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Answer:
1. 4x²-11x-7=0 a=4 b=-11 c= -7
2.5x²-3x=0 a=5 b= -3
3. x²+x-7=0 a=1 b=1 c= -7
4.x²-14x+52 a=1 b= -14 c=52
5.y²-18y+31 a=1 b= -18 c=31