21x2+100=-5

Simple and best practice solution for 21x2+100=-5 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 21x2+100=-5 equation:



21x^2+100=-5
We move all terms to the left:
21x^2+100-(-5)=0
We add all the numbers together, and all the variables
21x^2+105=0
a = 21; b = 0; c = +105;
Δ = b2-4ac
Δ = 02-4·21·105
Δ = -8820
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 2s+2s+3s=7 | | 6x(-2x+3/5)=(x-5/4)-x | | x/(x^2-2x+1)=((x^2-x)/(x^3-1))(1/(x^2-x)+x/(x^2-1)) | | y/(y^2-2y+1)=((y^2-y)/(y^3-1))(1/(y^2-y)+y/(y^2-1)) | | 16(m-4)=7m+3 | | 5(x−3)=4(x−6) | | 6x+(x+3)=17 | | (5z-4)(7-z)=0 | | 5x+8+2(x-1)=21 | | 3x+3=5x-(7) | | -5x+6=-6x+9 | | 4x-7x-21=-36 | | 4m(m2)-(m^2-1)=5+3m | | 3a+12/5=-1 | | j+3j=5.2 | | 8g-6g=7 | | 3f+7f=44 | | e-8=-3.65 | | 3x+18/5=2x-2 | | 21÷4÷x=24 | | b-3.4=17 | | (3-c)(4-c)=2c^2-20c+48 | | 9m-17=7m-6 | | 8m-12=5m-3 | | a+6.2=17 | | 3m+2m=7-1 | | 3x-15/2x+1=0 | | j+3j=24 | | 5^3x=-18 | | 10i-3i=77 | | 8h-h=28 | | 2(7-x)=3(x+2) |

Equations solver categories