If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-0.15x^2-1.6x+79=0
a = -0.15; b = -1.6; c = +79;
Δ = b2-4ac
Δ = -1.62-4·(-0.15)·79
Δ = 49.96
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{-(-1.6)-\sqrt{49.96}}{2*-0.15}=\frac{1.6-\sqrt{49.96}}{-0.3} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1.6)+\sqrt{49.96}}{2*-0.15}=\frac{1.6+\sqrt{49.96}}{-0.3} $
| 5^2x-2.5^x-15=0 | | -0.15x^2+1.6x+1.79=0 | | 5y^2=5.75 | | 4x8x=11.48 | | 5y^2=5.76 | | -13=-8x-2+5x | | -w−13=-2w | | 5-7v+1=-8v=3 | | -3c=19-2c | | 9-8m-7m=-14m-3 | | -7y+1=10-8y | | 7-5w-6w=-9w-7 | | 10m+10=110m= | | p+2×(45,1+4,4)=258+99 | | 3z/5=5/8 | | 13×m=78 | | 6w+4=w+1 | | 3×m=78 | | m+(m-650)=1250 | | 362=50x+12 | | q=108+1/3 | | 6q=6(49+1) | | 6q=6(49+1 | | 3=6p=21 | | B=5/2(j-50) | | 13s=2s-7 | | (x+3)2–8x–9=0 | | B=2/5(j-50) | | 3y+4=y+19 | | 3y+4=y+1 | | 7k-(2-k)=0 | | 125m-100m+33,250=35,350-150m |