x^2+3x+12=

Simple and best practice solution for x^2+3x+12= 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 x^2+3x+12= equation:


Simplifying
x2 + 3x + 12 = 0

Reorder the terms:
12 + 3x + x2 = 0

Solving
12 + 3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + 3x + -12 + x2 = 0 + -12

Reorder the terms:
12 + -12 + 3x + x2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 3x + x2 = 0 + -12
3x + x2 = 0 + -12

Combine like terms: 0 + -12 = -12
3x + x2 = -12

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -12 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -12 + 2.25

Combine like terms: -12 + 2.25 = -9.75
2.25 + 3x + x2 = -9.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -9.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 7(9b+14)=665 | | 6a+6ab=24 | | -(3y+2)-(-2y-4)=2 | | 9x+11-3x=14-15x-16 | | 8t+21=85 | | z^2-z=-2+2Z | | Y+1=-8 | | 6a+6ab= | | 13+9/4=-3 | | 13+3/4=13 | | 25a=7/5 | | M/7-9=7 | | 27x^3+45x^2-3x-5=0 | | 5x^2-47x+56=0 | | 2+14/2+3 | | 0.05x^2-0.5x+0.08=0 | | 6/5x=1 | | (x/5+2x/7)=35 | | 10x^8+14x^7+22x^5=0 | | 1/6(a+6)=1/2(3-a) | | -15/7=-5y | | 6x+3x=8x-7 | | X^2+10x+15=x-5 | | 54.8-1/5b=60.1 | | 28=-7/5u | | t=3U/E | | 9t+7=97 | | 3x+6-x=10 | | v/8+30=37 | | s/3-3=7 | | x-0.2x+.06(x-.2x)=66.91 | | 550+220s=2310 |

Equations solver categories