If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-2x^2-5x-2=0
a = -2; b = -5; c = -2;
Δ = b2-4ac
Δ = -52-4·(-2)·(-2)
Δ = 9
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{9}=3$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-3}{2*-2}=\frac{2}{-4} =-1/2 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+3}{2*-2}=\frac{8}{-4} =-2 $
| 4m-(7m+6)=-m | | 36=9v+6-9v | | 2(x+3)=10x-1 | | 1/2x-12=3 | | (8x+4)^-1=0 | | 10x+5=12x^+6x | | 21+2(m-4)=25 | | 15x+5=18x^+6x | | 5g/7=2/8 | | 10=6y-20 | | 13(x+1)=11x+25 | | 3(k-4)-2(k+2)-13=-23 | | 198=-9(-9+x) | | 16=2x-10*3 | | n^2-3n=130 | | 3(11+n)-3n=33 | | 18x2-3x-36=0 | | 2(1+5b)=7(2b-4) | | 7h-3h-3h=18 | | 2x+57=7x+17 | | 4(k-6)+6k=12 | | 9/5k-3/5=-8+2/9k | | X^-18x-2=0 | | 88=4(6-2n) | | 48=-3b | | 25x^2-41=59;2 | | 1/2b+2=3b+12 | | 0.4x-2.5=1.3x=4.7 | | 12c-10c=8 | | d=300-48 | | 11=a-(-7) | | (3/4)x-1=7/5 |