x^2 + x - 6
(3(x - 4)(x +3))/(x^2 - x - 12)
x^2 -2x -15= 0
x^2 -6x +10 = 0
3 + i, 3 - i
|2x-3|=7
x^2 + 11x + 18
(2(x-5)(x+3))/(x+6) * (4(x+6))/(x-5)
x^2 + 16x + 60 =0
2x^2 + 3x + 7 = 0
(-3 + isqrt(47))/4, (-3 - isqrt(47))/4
{ (y = 2x +1), (y = x +1)}
2x^2 + 7x - 15
(x^2 + 6x +9)/(x - 3) * (x^2 + 4x - 21)/((x + 3)^2(x +9)
(x + 7)/(x + 9)
2x^2 + 7x - 15 = 0
2x^2 - 3x - 7 = 0
(-3 + sqrt(65))/4 , (-3 - sqrt(65))/4
(2x^2 +5x - 6) - (2x^2 -5x + 11)
10x - 17
15x^2 -11x -14
((2x^2 + 9x - 5))/((x^2 - 25)) / ((2x-1)(2x+5))/(x-1)
(x - 1)/((x-5)(2x+5)
3x^2 + 26x = 9
x^2 +8x + 100 = 0
-4 + 2isqrt(21), -4-2isqrt(21)
{(y=x^2 + 3x + 6), (y = -x^2+3x+12)}
3x^3 + 375y^3
3(x + 5y)(x^2 - 5xy + 25y^2)
(16x^2 + 20x - 6)/(36x^2 +39x -12)
(2(2x+3))/(3(3x+4)
-6x = -9x^2 +35
3x^2=2x-11
(1 + 4isqrt(2))/3, (1-4isqrt(2))/3
x^2 =3x -39
(3+7isqrt(3))/2, (3 - 7isqrt(3))/2