If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3x^2+12=9
We move all terms to the left:
3x^2+12-(9)=0
We add all the numbers together, and all the variables
3x^2+3=0
a = 3; b = 0; c = +3;
Δ = b2-4ac
Δ = 02-4·3·3
Δ = -36
Delta is less than zero, so there is no solution for the equation
| 56y×4=98 | | 19x-3x=16 | | 1/3*x^2/2*2x=72 | | 19+x=15+3(x-2) | | 3x^2−13x−10=0 | | 100-2p=3p | | 7x/6-10=x/2+2 | | 2=6g=11-3g | | 7x/6-10=x/2=2 | | 8x=15x+21 | | 5^2x-1=7^2x-1 | | 6=3j–3 | | 6/5=30/x | | 3n=4=7 | | 4x^2+2x-12=-6 | | 17w-18=2w-15 | | -14=1+n | | 11x/21-9=x/7+23 | | 65=13^x | | 2n2+3n-2=0 | | -7.6(x-2.75)=22.8 | | -14=31/2n | | 2x+7/4=x+3/3 | | X²+2x+21=0 | | x-1/2x-1/24x-1/4*(1/2x)=32 | | 168=-y+211 | | 100x/x=2540 | | 4x^2+9x+5=-1 | | n2+3n-2=0 | | 6u+42=-4u+36 | | 4(2x+9)=-35+23 | | 4y/7-7/8=25/56 |