If it's not what You are looking for type in the equation solver your own equation and let us solve it.
15+17x-2x^2=0
a = -2; b = 17; c = +15;
Δ = b2-4ac
Δ = 172-4·(-2)·15
Δ = 409
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(17)-\sqrt{409}}{2*-2}=\frac{-17-\sqrt{409}}{-4} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(17)+\sqrt{409}}{2*-2}=\frac{-17+\sqrt{409}}{-4} $
| 8x-6÷X+3=2 | | 9x/355=13 | | 52=4+q | | 12=x+5/6 | | 3x+3=9/2 | | 19+2s=-61 | | -8g+1.7=-42.3 | | 28=-4c+32 | | 6x+36=2x^2 | | 25=7x+7-4x | | 28=-4c+33 | | 4y+7=3y–1 | | 9(k-91)=45 | | 1/5x+1=1 | | z/6+48=52 | | 4.2=1.2+t/2+2.4 | | 4n+19=91 | | 8x+200=4200 | | 3X–6=1x+2 | | G(x)=-6x^2-1 | | d/9+33=34 | | -3(-7-b=1/3(b+39) | | -1=2x−1 | | 6(u+3)=6u+18 | | 8v/8=58/8 | | 6c+8=56 | | 5r+4=-90 | | 2x−x=19 | | −20=−0.5k | | 2a+14=10 | | 26=m/6.4+4.3 | | 2(a+4)+8=32 |