If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4x^2-0.0000004x-0.00000004=0
We add all the numbers together, and all the variables
4x^2-7x-8-4.0E-4.0E=0
We add all the numbers together, and all the variables
4x^2-7x-29.7462546277=0
a = 4; b = -7; c = -29.7462546277;
Δ = b2-4ac
Δ = -72-4·4·(-29.7462546277)
Δ = 524.940074043
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)-\sqrt{524.940074043}}{2*4}=\frac{7-\sqrt{524.940074043}}{8} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{524.940074043}}{2*4}=\frac{7+\sqrt{524.940074043}}{8} $
| 5x+10=4x+19 | | 3(2n+5)=7(3n+8)+4 | | 10b²+17b-20=0 | | 6x÷7=-12 | | 125=y+8.67 | | 2=f-18 | | -3w+-2w+3w−-17w=15 | | 30/x=15/6=18/5= | | 5/9-x/12=5/6 | | 3x+1x-10+2×=200 | | 25000/x=590 | | 126=f/3 | | -4(2a-6)=-16 | | b2+14b-100=7 | | X^3-7x-16=0 | | 4x+2(x-1)=(-20) | | 7(5x-3)=35x-21 | | 16/10=n | | -2x+4=-3x+13 | | 2.5(2q-3)=1.5 | | 0.10(y-1)+0.02y=0.14y-0.2 | | -7(b+3)=-15 | | 8h-8+h=10 | | 6.89x^2-0.4x-0.9=0 | | 3/5(x-8)=-15 | | x/2+6=2 | | 4x^2-0.0000004x-0.000002=0 | | -18.12=0.3d | | 2(x-1)-3(2x+4)=5x | | 3x+2=6+2x | | 15/8+115/24+x=71/2 | | 6^2+45x-24=0 |