If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4.9x^2+7.7x+1.8=0
a = 4.9; b = 7.7; c = +1.8;
Δ = b2-4ac
Δ = 7.72-4·4.9·1.8
Δ = 24.01
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{-(7.7)-\sqrt{24.01}}{2*4.9}=\frac{-7.7-\sqrt{24.01}}{9.8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7.7)+\sqrt{24.01}}{2*4.9}=\frac{-7.7+\sqrt{24.01}}{9.8} $
| a=5+0.5A | | 10x^2-169x+2=0 | | 2x+20+x+10=90 | | 71-3.5h=50 | | -0.5x+x=1 | | 4(x-1)^2=-200 | | 0.5x+x=1 | | X^2×2x^2=147 | | 20(1-y)+10y=12 | | 4(x-1)^2+200=0 | | 24=x|-6 | | 3x+2=5x-78 | | 2-2y+1y=12 | | 4-3y/6y-2=-3/5 | | 4m-6.5=2 | | 12x^2-156x+360=0 | | 3n+28=10n-30 | | 3(3)+2y+17=0 | | n=123n+12 | | 7x-61=5x-13 | | 2^2v=8.4 | | 73a=31 | | 4m+2(3m-1)=18 | | 5(a-1)+2(a+3)=22 | | 4(x+3)-5=19 | | 6(3y+2)=4(7y-11) | | 2x-3.8/4=0.6 | | 10x-8x=4x+10 | | 5x+17+2x+50=180 | | 4-2m=14 | | 1/2x-(8-x)=7 | | x+0.25/3-0.5=x |