If it's not what You are looking for type in the equation solver your own equation and let us solve it.
0=25-8.33x-3.5x^2
We move all terms to the left:
0-(25-8.33x-3.5x^2)=0
We add all the numbers together, and all the variables
-(25-8.33x-3.5x^2)=0
We get rid of parentheses
3.5x^2+8.33x-25=0
a = 3.5; b = 8.33; c = -25;
Δ = b2-4ac
Δ = 8.332-4·3.5·(-25)
Δ = 419.3889
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8.33)-\sqrt{419.3889}}{2*3.5}=\frac{-8.33-\sqrt{419.3889}}{7} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8.33)+\sqrt{419.3889}}{2*3.5}=\frac{-8.33+\sqrt{419.3889}}{7} $
| 15b-40=5b+120 | | 0=-3.5x^2+8.33x+25 | | 3.5x^2-8.3x+25=0 | | 25=x(3.5x-8.33) | | 25=-x(8.33+3.5x) | | 7x+10=1/10 | | 25=x(8.33+3.5x) | | 5(x-7)-7x=-25 | | 5x-4(0)=-16 | | -25=x(8.33-3.5x) | | 25=x(8.33-3.5x) | | 180=15x-15 | | 3x+24=9x=x | | -31=5z+14=z | | x+x/2+2x-2=180 | | 20=1000-2x | | 25=3a+10=a | | -67=14+9z=z | | 14+4z=-22=z | | X=3q+8 | | 12+8a=100=a | | 12-3c=33=c | | 3x-11=16=x= | | 9c-25=11=c | | 11-5a=51=a= | | 23-z=17=z= | | 13=6c=-29=c= | | 3c-12=3=c= | | x+x(1.0775)=125 | | 8a+12=44=a= | | 8a+12=44a= | | 5a-11=4a= |