2. 2x* + 3x - 10 > 0 3. X* - 3/4x - 1/7 <0 *= kuadrat

2. 2x* + 3x - 10 > 0 = (x+5)(x-2)>0
x=-5 atau x=2

[tex] x^{2} - \frac{3}{4} x - \frac{1}{7} = (x +36 \frac{1}{2} )(x - 55 \frac{1}{2} ) \\x=-36 \frac{1}{2} \\dan\\x= 55 \frac{1}{2} [/tex]