If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2r^2+22r-204=0
a = 2; b = 22; c = -204;
Δ = b2-4ac
Δ = 222-4·2·(-204)
Δ = 2116
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{2116}=46$$r_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(22)-46}{2*2}=\frac{-68}{4} =-17 $$r_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(22)+46}{2*2}=\frac{24}{4} =6 $
| .40n=-8 | | (2)2m*32=128 | | x2+5x-135=0 | | 2350000/140=248380/x | | -2+5y=52 | | 36=5(a-1)+6 | | 3(2x-3)-2(x-1)=9 | | 2x+3X+5X=450 | | 1x+1—=2 | | 8=0.1x+1 | | x^2−7=14−2x^2 | | 52−x+x−5x+2+3x+8x2−4=0 | | g(2)=6g(2)=6,g′(2)=−4 | | 9/8(x-3)=-9 | | (x+2)^2-48=0 | | 4+x+1=2x | | (t-1)/9=(t-2)/2 | | 2/x-3=x+2/3 | | 3+6x=-4-8x | | 1.03x^2+8x-20=0 | | 6.49x^2+2x-15=0 | | 3(x-7)=200 | | -1/7=x+1/2/3 | | 3(7y-6)^2-166=26 | | 21/56=15/x | | 3(7y-6)^2=26 | | X=-0.5t | | c^2-8c-8=0 | | (k-4/5)=12 | | 12+2(w-9)=3(w-12) | | 5k+6k=-33 | | 3y=(24-19y)^(1/2) |