If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4d^2-5d-6=0
a = 4; b = -5; c = -6;
Δ = b2-4ac
Δ = -52-4·4·(-6)
Δ = 121
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$d_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$d_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{121}=11$$d_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-11}{2*4}=\frac{-6}{8} =-3/4 $$d_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+11}{2*4}=\frac{16}{8} =2 $
| 0.2x=0.5x | | 36=32t+3t^2 | | 4y^2-27y-7=0 | | 9d^2+23d=0 | | 6z^2-29z-5=0 | | 5(x-5)+17=1/2(10x-6)-5 | | q^2-9q+14=0 | | 5k^2+2k+16=0 | | 63+1/2x=26 | | 2f^2-11f+14=0 | | 0.09(x+1000=3690 | | 4k^2-7k+2=0 | | (-y-1)=72 | | (-z-7)=72 | | (-z-7=72 | | -3x-5=-x+5 | | (-x+4)=68 | | 5x-4(x+6)=22 | | 112=0.56*x | | 765=0.06v-450 | | 175m-75+53075=55275-175m | | 175m-75+53.075=55.275-175m | | 5+-3x=5x-19 | | 11x+15x+8x-5=180 | | 3x+1=8x-8 | | 1.17=5.2x | | 3x6-1+2=17 | | 1/3d+1/5d=1/2 | | 4^x=9*2^x+8=0 | | 4b(b+5)8=0 | | 4b(b+5)-8=0 | | 9u+5=5(u-3) |