If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-x2-4x-2=0
We add all the numbers together, and all the variables
-1x^2-4x-2=0
a = -1; b = -4; c = -2;
Δ = b2-4ac
Δ = -42-4·(-1)·(-2)
Δ = 8
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{8}=\sqrt{4*2}=\sqrt{4}*\sqrt{2}=2\sqrt{2}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-4)-2\sqrt{2}}{2*-1}=\frac{4-2\sqrt{2}}{-2} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-4)+2\sqrt{2}}{2*-1}=\frac{4+2\sqrt{2}}{-2} $
| x^2-2√(3x)+2=0 | | 16−4c=8 | | 6-9x=6x+9x-18 | | 20=4(f+1) | | c-428/16=19 | | -2.6(g-7)=0 | | 85=(-3+x) | | 24(j+5)=792 | | z8+ 49=57 | | -4x+6=46=x | | 21=24-3b | | 2(x+4)=0.5(4x-4) | | 527-3×(x+4)+5×(12-4x)=5×(x+3) | | -72=-8(m+34) | | r/7+2=8 | | n-16=57 | | 8(r-90)=32 | | y=4y-7-29 | | 13(d+4)=7(d+10) | | -8(u-91)=-16 | | 6(t+3)=78 | | 13=7+3k | | 6.7=-1+x | | 7x−35=9x−3 | | 5x^2-7x=-6x+4 | | w-22=13 | | v+268=4 | | 4x-6=2(3x-7) | | -26+3x=-53+25x | | 10-4g^2=-11 | | v+26/8=4 | | -7x+11-x=-13 |