Y=3.5x^2+21x+31.5

Simple and best practice solution for Y=3.5x^2+21x+31.5 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 Y=3.5x^2+21x+31.5 equation: 



=3.5Y^2+21Y+31.5

We move all terms to the left:

-(3.5Y^2+21Y+31.5)=0

We get rid of parentheses

-3.5Y^2-21Y-31.5=0

a = -3.5; b = -21; c = -31.5;
Δ = b2-4ac
Δ = -212-4·(-3.5)·(-31.5)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$Y=\frac{-b}{2a}=\frac{21}{-7}=-3$

See similar equations:

| 8x+3x-2=45 | | 3x+4-5x=5x-2-5x | | 2x-8.6/2=-2.3x= | | 12+6.4n=6+6.8n | | x^{3}-6x+1=0 | | 3y2-12y+8=0 | | 7x6=28 | | -2k^2-k+3=0 | | (6z+1)(-8z-5)=0 | | 3x(5+10)=0 | | (5n+3)(-4n-6)=0 | | 5+10x(3+2)=2 | | 7u-6=2u-21=36 | | -5x^2=-2645 | | 35=h-19 | | -6(-y+3)=2y+7 | | .05x=140 | | |2,73^x-1-x|=(x^2)/(2)*2,73^|x| | | 0.12(x+1)+0.08x=0.3x+0.45 | | x9​=25x​ | | r-9÷2=4 | | 8x-38=17-3x | | 5y²-28y+15=0 | | 0.15(x-50)-0.05(x-20)=13.5 | | 68=-9x+5 | | 36x-23=13x+23 | | Y=-2000x+34000 | | F(x)=-2000x+34,000 | | 3x137=2x+28 | | 17-x2+16x=0 | | 6k-3k=2k+4 | | 3f+43=5f-43 |

Equations solver categories