If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2x^2+20x+56=0
a = 2; b = 20; c = +56;
Δ = b2-4ac
Δ = 202-4·2·56
Δ = -48
Delta is less than zero, so there is no solution for the equation
| 6(x+3)=2x+9 | | (-2x-8)(5-x)=0 | | -3=5h | | 4(3x-1.2)=9.5x+6.2 | | X-0.13x=1137.92 | | 32^-x=16 | | -6x+7=6x-5 | | 20x-4=20+20x | | -4x-30=-16x+6 | | y/5+4=12 | | X=1137,92+0,13x | | X=1137.92+0.13x | | 6^-3n=6^-2n | | -6x+2=-6x-10 | | y’’+4y=8 | | 3x+6=5x+36 | | 7x−1=6x+5 | | 20y^2-92y-23=0 | | 3x-1)/5=x/7 | | Y=4x+55 | | 2x²-8x-3=0 | | (-18v)-v+(-10v)-(-11v)=18 | | 2m+5=3m-10 | | 9-x÷2=4 | | 105÷x=15 | | x^2-42x+784=0 | | 10a+4=8a-9 | | x^2+42x+784=0 | | 5x=30-30x= | | (11y-36)=117 | | 7.9x^2+4.6x-5.8=0 | | 1-x=5-x/3 |