If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2-3x-72=0
a = 4; b = -3; c = -72;
Δ = b2-4ac
Δ = -32-4·4·(-72)
Δ = 1161
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{1161}=\sqrt{9*129}=\sqrt{9}*\sqrt{129}=3\sqrt{129}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-3\sqrt{129}}{2*4}=\frac{3-3\sqrt{129}}{8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+3\sqrt{129}}{2*4}=\frac{3+3\sqrt{129}}{8} $
| 1/3•(x+1/2)=7/30 | | -500*1.22474487139*1.2+x*9.81*(45/2)=0 | | 500*1.22474487139*1.2+x*9.81*(45/2)=0 | | 500*1.22474487139*1.2+x*9.81*0.225=0 | | 500*1.22474487139*1.2+x=0 | | 500*1.22474487139=x | | -3(x-8)^2+27=-108 | | |6x-10|=6 | | 15y+10=10 | | (a+1)=3 | | -6(3x+10)=-12 | | 6x-1=-15+4x | | -6x+9=-2x+25 | | 5x-6(x+7)=8x | | 12(a-6)-11(5+a)=0 | | 4(4-7x)=72 | | -3x(2x+6)=6 | | 3+4x+7x=69 | | 0.1x－0.12=0.3x+0.2 | | 0.1x－0.12=0.3x+0.2= | | -2x+4+x=-7 | | 150-15x=0 | | 4(-3x-10)=-136 | | 7^x+5=12 | | 1-5x=7x-21 | | 8=5x+4x-1 | | 8+6x+2x=8 | | |2x-7|-15=-6 | | -6x-3=-2x+17 | | -6.25c+262.5=250 | | 100-(4x6)+45= | | X^2+9x+-12=0 |