If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-3x^2+15x+17=0
a = -3; b = 15; c = +17;
Δ = b2-4ac
Δ = 152-4·(-3)·17
Δ = 429
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{-(15)-\sqrt{429}}{2*-3}=\frac{-15-\sqrt{429}}{-6} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(15)+\sqrt{429}}{2*-3}=\frac{-15+\sqrt{429}}{-6} $
| 6=9/k | | x(.25)=750 | | -3x^2+10x+18=0 | | 2x-21.1=x+2.9 | | 4(5s-9)=2(10s-12) | | 4/x+2-x/x+2=3 | | 8f+7=7f-400 | | X+3/5-x=-3 | | -2(4n-3=20n-57 | | x=9/5(191.8-273.15)+32 | | 5(2c+7)=3c+30+7c+5 | | 8.4+h=15.2 | | -12a+2=5a+25+6 | | -12a+2=5a+25 | | -1/9(x-27)+1/3(x+3)=17 | | 6(3t-4)=10t+8 | | 5+0.3x=1.08^x | | 12k-4=10k+1 | | 5+0.3x=1.05^x | | 7x-6=-6+5x | | 2(2w+8)=18 | | 2+3x=9-5x | | -7+3x=2x-6 | | 6x4(x+9)=-62 | | 3-8x=-4x-8 | | -10-8x=9-4x | | 2x+3=3-10 | | x-10=8x-3 | | 0=3-2x-x^2 | | 28-5=2+3(x+) | | 6+6x=-3x | | 1/x-4+1/x=2 |