F(x)=x^2+3x+21

Simple and best practice solution for F(x)=x^2+3x+21 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 F(x)=x^2+3x+21 equation: 



(F)=F^2+3F+21

We move all terms to the left:

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

We get rid of parentheses

-F^2+F-3F-21=0

We add all the numbers together, and all the variables

-1F^2-2F-21=0

a = -1; b = -2; c = -21;
Δ = b2-4ac
Δ = -22-4·(-1)·(-21)
Δ = -80
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 2b+62=180 | | 14=(x/3) | | 10-4y(7-10y)=18 | | 0.4(n-1)+6=7.2 | | 5n=3=3n+5 | | X=2y-80 | | g÷8/5=3 | | y=3.5=-2.1 | | 14y-12y=14 | | 13=t-4.4 | | 2x-20=4×+10 | | 19m+4m-9m-14m+m=20 | | 1/3(7z-1)=4z-3 | | (2x+49)+(x-17)+x=180 | | 3x+34=5x+15 | | 5w-5=-30 | | 9(6m+3)=6(1-4m) | | 123.45-36.56=p | | 14x+8+34=180 | | X+12+x-5=180 | | -2.1/7p=3 | | 6(4x+2)=30x+5 | | 7y-4y-10=35.81 | | -6x-3=7x | | -15w+6=-9-16w | | 21.35-8.95=p | | 7+10n-4n=n+1 | | 36=(a+2)^2-a^2 | | 4q-3q-q+2q-q=17 | | 13b-4=20+16b | | 4(x-2)-5=17 | | X+x+3+6x+7=180 |

Equations solver categories