If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x^2-17x-30=0
a = 1; b = -17; c = -30;
Δ = b2-4ac
Δ = -172-4·1·(-30)
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*1}=\frac{17-\sqrt{409}}{2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-17)+\sqrt{409}}{2*1}=\frac{17+\sqrt{409}}{2} $
| -8x-6=-2x-7 | | 4(y-1)+20y=14y-60 | | 0.04(y-1)+0.20y=0.14y-0.6 | | 0.75(30)=x | | 7/x-5+1/x=7/x-5 | | 8.3=4k2.5 | | 130=0.50m+30 | | L3(2x-4)=2 | | n/3-7=-4 | | 3(3v-2)=3/4(4-24v( | | 12=-6+3t | | 11a-13a=15a | | 6x+37x=13 | | 0=-16x^2+20x-5 | | 1,2x+2=3x | | X+5/2=1-x+2/5 | | 6(5x-3)-3(4x-2)=10-15 | | (×+6)(x-4)=-16 | | 6.50+2n=16.43 | | 5x-3=+2x-7 | | 5x-3=2x=7 | | -(2-4x)+8x=6(2x-2)+3 | | 2.5x+3=4.3 | | 7x-(4x+4)=5x-20 | | 0.2-0.02(x+2)=-0.02(2-x) | | 3(3x+8)=-3 | | 13y+37=154 | | 2/7+x=17/2 | | 3x+0.8=12.8 | | 10x-4(2x+8)=18 | | 7=1+3y | | 6=-3(x+2)= |