12-3x2+9=99

Simple and best practice solution for 12-3x2+9=99 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 12-3x2+9=99 equation:



12-3x^2+9=99
We move all terms to the left:
12-3x^2+9-(99)=0
We add all the numbers together, and all the variables
-3x^2-78=0
a = -3; b = 0; c = -78;
Δ = b2-4ac
Δ = 02-4·(-3)·(-78)
Δ = -936
Delta is less than zero, so there is no solution for the equation

See similar equations:

| -9y-30=-3(y-4) | | 37.2=5n-2 | | 2.4x-6.2=3.2-0.4x | | x/120=14/15 | | |6x-18|=-12 | | 3b^2-17b+15=-5 | | 5y-13=62 | | 7(r-7)+5r=59 | | 2x-4x-13=-2x+2-13 | | 5y-12=62 | | 7x+24=3x+92∘ | | 2(3m-3)=5(2m-1) | | 76=4y=8 | | 22+.75n=1.75n | | 11/17=v/12 | | -2y/3-3/4=5 | | 5w+-12w=16-15w | | 3.5+1.2(6.3x-7x)=9.38 | | (3x-15)^2=18 | | 3n−n=20 | | -2+y/10=-10 | | 15x-8-2x=13x | | 3b^2-17b+15=0 | | 8+6=4x+38 | | 4x-20=-18 | | 66/88=3/x | | 1/3(12x+9)=4x+3 | | 8x-7/7+5x=3/5 | | 5w=27.5 | | 1000(8x-10)=40(1,220+100x) | | 4​(a-3​)=8a-​(4a+12​) | | 7x+5=-8+5x+21 |

Equations solver categories