12x-3x^2+15=0

Simple and best practice solution for 12x-3x^2+15=0 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 12x-3x^2+15=0 equation:


Simplifying
12x + -3x2 + 15 = 0

Reorder the terms:
15 + 12x + -3x2 = 0

Solving
15 + 12x + -3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + 4x + -1x2) = 0

Factor a trinomial.
3((5 + -1x)(1 + x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {5, -1}

See similar equations:

| 24y+15y= | | 7R=4R+39 | | x=-5x+2 | | X+27=x+9 | | 4(b+7.2)+10.8=46.1 | | 15z-6=3(8z-5) | | X+26=2x+21 | | 2x+5+7=40 | | -10x-6y=-14 | | 12P=8P+108 | | 3x+9y=33 | | 2x+21=x+26 | | 5h-4=5h-10+3 | | 9x^2-7x^2=18 | | (8)(4y)=(8)(4)+(3)(y) | | 8.6=x-3.8 | | v(T)=-300*t+15 | | -51=8v+15-2v | | 7x+-1=2x+4 | | 22d+70=17x-95 | | -6(h-8)+2(h+4)=36-4h+20 | | -x^2+7x-18=0 | | (8)(4y)=(8)(4)+(3y) | | 3n+4=3n+10 | | 55=5+15+5 | | -x+27=x+9 | | 7x+3-11x=19 | | xy=4 | | -21x-21y=21 | | x^2(ln(x+4))-16(ln(x+4))=0 | | 3x+y=2x | | 100n+6y=4 |

Equations solver categories