If it's not what You are looking for type in the equation solver your own equation and let us solve it.
10x^2=-9
We move all terms to the left:
10x^2-(-9)=0
We add all the numbers together, and all the variables
10x^2+9=0
a = 10; b = 0; c = +9;
Δ = b2-4ac
Δ = 02-4·10·9
Δ = -360
Delta is less than zero, so there is no solution for the equation
| 2a=−12 | | 304x+57=306x+342 | | 84+7x+5=180 | | 3(b+b)=12 | | 3(4+2w)+2=16+4w | | 72b=8 | | F(5)=2x-7/x | | 2x2-26x=3x^2-4x-8 | | 8x+3=-10 | | 3x+3=7x-13 | | 3d=-30 | | (h/3)+(2/3)=(h/2)+(2/5) | | 11-7f=-19-5f | | 11−7f=-19−5f | | 3x-20×+11×=9 | | 1x-63=-3x+49 | | 14v+4-2v=16+13v | | 128-(9x-2)=4x | | 6x+2+7x=158 | | (X-9.5)/(x+9.5)=0.2 | | 6x-43=-3x+200 | | -36+8a=4a-4(1+a) | | 5+4x+7x=115 | | 3x+8=6x-70 | | 2−16t=6(−3t+2)2 | | 14v+4−2v=16+13v | | 3x-75=-2x+50 | | 2−s=5 | | x#62=101 | | (X-9.5)/(x+9.5)/2=0.1 | | 7x+3+6x=159 | | 0=-5x^2-12+12x |