If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-1.5x^2+1.69x+18=0
a = -1.5; b = 1.69; c = +18;
Δ = b2-4ac
Δ = 1.692-4·(-1.5)·18
Δ = 110.8561
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{-(1.69)-\sqrt{110.8561}}{2*-1.5}=\frac{-1.69-\sqrt{110.8561}}{-3} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1.69)+\sqrt{110.8561}}{2*-1.5}=\frac{-1.69+\sqrt{110.8561}}{-3} $
| x=9-4(15/10) | | (2x+1)(x+3)/4x^2-1=0 | | x=3+2(14/7) | | a/3-2a/9+5a/6=34/9 | | 6(2x+2)=3x+12 | | 5x+3x+2x/5x=x | | 3(x+2)=2x+10-x | | 8+4x=-3x | | 13x=1=11x+9 | | 6(3w+6)/5=-2 | | P=4x-11 | | 3+2(3u-4)=8u-3 | | 14/22=7/x= | | A=4x-11 | | 14/22=7/×x= | | (10x4)+-1(20x3)=0 | | -4y+8+4y-12=0 | | X^2/x+8=x/x+8 | | 10(s-5)=88 | | A=(5x-5)+19-x | | 4x-8(0)=12 | | 5-4t=3-5t | | 1/2x9=9/2 | | 5x-4x+10=14 | | -4.9t^2+12.25t+115=0 | | (x+3)(5x^2-11x-36)=0 | | 12x-2/7=13/4-5x | | 10^(3x+2)=6 | | 38*6+7/5x=4+3 | | 12-4x=4*5+6 | | 6+8y/12=4+5 | | 3-3x+12=12-2x |