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+9.2x+9=0
a = -4.9; b = 9.2; c = +9;
Δ = b2-4ac
Δ = 9.22-4·(-4.9)·9
Δ = 261.04
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{-(9.2)-\sqrt{261.04}}{2*-4.9}=\frac{-9.2-\sqrt{261.04}}{-9.8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9.2)+\sqrt{261.04}}{2*-4.9}=\frac{-9.2+\sqrt{261.04}}{-9.8} $
| 4(1+3x)=5(x-2$ | | 47=x+21 | | 4-3b=6-5 | | m+3.4=2.1m+3.4=2.1 | | z+6/13=4 | | 3(5a+6)=16 | | 0=4.3x+12.9 | | 6w-5w-+4w+4w+w=20 | | x-0.80x=16 | | 17d-16d=15 | | 5h-4h=14 | | 3x-3/2=4x-6 | | 72=9y+9y | | 4m+12=6m | | −14u+32=−6 | | (5y+3)(y-3)=0 | | 5-33=-4(y-3) | | v+9=4+4v-7 | | 2400=2^x | | 31+5n=-3(-2+5n)-5n | | 5a=a+4 | | 22-3x=16(4x-7) | | F(x)=x2+5x+4 | | -7w-1=8 | | 8(1+5d)=22 | | -1-7a=-(1-a) | | Nx2=20 | | 9-2v=1+6v | | 3-(8x-5)+(6-7)x+3=7x-(5x+9-3) | | D=75x1 | | k^2+9k+16=0 | | 8(1-7n)=8-7n |