If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0=4+5x+2x^2
We move all terms to the left:
0-(4+5x+2x^2)=0
We add all the numbers together, and all the variables
-(4+5x+2x^2)=0
We get rid of parentheses
-2x^2-5x-4=0
a = -2; b = -5; c = -4;
Δ = b2-4ac
Δ = -52-4·(-2)·(-4)
Δ = -7
Delta is less than zero, so there is no solution for the equation
| 32=54-(r) | | 45–2y;y=5 | | -5.73y=97.41 | | 0.49v=6.37 | | 15n3–6n2=0 | | -13a=143/2 | | 2/5h=-4/3 | | 2x^2+84-26x=0 | | 3x=-7x+18 | | 2^(2x+1)-33^(2x)+16=0 | | 45+15+2x=180 | | 5x-15=-x+15 | | 0.04^2-2.7x+8.6=0 | | 7x+4(2x)=15 | | X(x+1)(x+2)(x+3)(x+4)=360 | | –14t–8=20 | | 2/4z-7=35 | | 2/4-7-35=z | | 2/4-7z=35 | | 2/4-7=35z | | x-(-16)=12+13= | | n+24+11=76 | | 2y+5=3(y-1) | | x/9-21=-18 | | x÷7-21=-11 | | x/7-21=-11 | | k/12-23=-17 | | x/12-23=-17 | | x÷12-23=-17 | | x/5-26=-15 | | x÷8-10=-2 | | 9(x+11)=117 |