(1).2x2
- 5x- 12=0
(12).4n2+4n - 15=0
(2).3x2
- 5x- 2=0
(13)2+a - 35=0
(3).6x2
- 13x+5=0
(14)..x2+2x-8 =0
(4).7
(1).2x2
- 5x- 12=0
(12).4n2+4n - 15=0
(2).3x2
- 5x- 2=0
(13)2+a - 35=0
(3).6x2
- 13x+5=0
(14)..x2+2x-8 =0
(4).7x2
- 19x - 6=0
(15).x2+3x-10=0
(5).12x2 - 13x+3=0
(16)5x2 - 8x- 13=0
(6).4x2+24x+27=0
(17)4x2+15x+9=0
(7).5x2+6x-8=0
(18)15x2+x - 2=0
(8).2x2+3x+1=0
(19)6y2+19y+10=0
(9).2y2+y - 6=0
(20)20 - 9y- 20y2=0
(10).6x2 - 13x+6=0
(21).x2-x-20=0
(11)2 -- 6=0
(22).x2+x-6=0
(31).2x2+5x-3=0
(40).x2+6x-7=0
(32).6x2+4x-2=0
(41).x2-8x+7=0
(33).x2-2x-3 =0
(42).x2+8x+7=0
(34).x2+6x+8 =0
(43).x2-5x+6=0
(35).x2-x-12=0
(44).x2-5x-6=0
(36).x2-7x+10 =0
(45).x2+5x-6=0
(37).6x2+x+2=0
(46).x2+5x+6=0
(38).4x2+4x-3=0
(47).m2+-12=0
(39).x2-6x-7=0
(48).6x2-5x-25=0
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