2x^2+21=3

Simple and best practice solution for 2x^2+21=3 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2x^2+21=3 equation: 



2x^2+21=3

We move all terms to the left:

2x^2+21-(3)=0

We add all the numbers together, and all the variables

2x^2+18=0

a = 2; b = 0; c = +18;
Δ = b2-4ac
Δ = 02-4·2·18
Δ = -144
Delta is less than zero, so there is no solution for the equation

See similar equations:

| (2x-1)*(-4x-3)=0 | | 4(1-7a)-11=9a-7(-2a+1) | | 15x-27=20x+7 | | .20(x+5)=13 | | 11b+4(3b+7)=5(b+12) | | (n+2)+2n=70 | | 3u-44=-4(u-3) | | f(X)=5X^2-10+XX=4 | | 8x–3x=40 | | f(4)=5X^2-10+X | | 1/5(x+5)=13 | | 4x-1=3(x+) | | 2^2-4x=-1 | | 2(5-3n)=-26+8n | | 2^2-4x+1=0 | | f(2+1)=-2f(2)+8 | | f(X)=5X^2-10+X | | 1/5(x=5)=13 | | f(3)=-2f(2)+8 | | a/4+4=16 | | 3p+1=-p-5 | | 2+3b-2b/4^8+(4+b/(9b))=420 | | x-11+2x-61+3x=360 | | -2x+64=7x+1-13 | | 180=5x+(x+10) | | x-3=x9 | | 7x+-33=-103 | | 4(x-1)=8=-3x+4-2 | | 4(x-1)8=-3x+4-2 | | x2/4=12 | | 42/5x=1 | | 3x+42=2x+5 |

Equations solver categories