6x^2+3x+15=0

Simple and best practice solution for 6x^2+3x+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 6x^2+3x+15=0 equation:


Simplifying
6x2 + 3x + 15 = 0

Reorder the terms:
15 + 3x + 6x2 = 0

Solving
15 + 3x + 6x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + x + 2x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + x + 2x2)' equal to zero and attempt to solve: Simplifying 5 + x + 2x2 = 0 Solving 5 + x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 2.5 + 0.5x + x2 = 0 Move the constant term to the right: Add '-2.5' to each side of the equation. 2.5 + 0.5x + -2.5 + x2 = 0 + -2.5 Reorder the terms: 2.5 + -2.5 + 0.5x + x2 = 0 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + 0.5x + x2 = 0 + -2.5 0.5x + x2 = 0 + -2.5 Combine like terms: 0 + -2.5 = -2.5 0.5x + x2 = -2.5 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.5x + 0.25 + x2 = -2.5 + 0.25 Reorder the terms: 0.25 + 0.5x + x2 = -2.5 + 0.25 Combine like terms: -2.5 + 0.25 = -2.25 0.25 + 0.5x + x2 = -2.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -2.25 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 5a^2+4a-12=0 | | 5a^2(3a^4+3b+2)=0 | | -11x=13y | | 1=11+2x | | (2A+3)(1A+2)=0 | | x=50+4 | | 40=50+4 | | 1B^2+12B-24=10B | | 3(2v+3)=5-4(3-v) | | (2w^2-4w-8)-(5w^2+3w-2)=0 | | 2B^2-1C-10=5 | | 3x^2+12y^2=0 | | 40x=50+4 | | -y/2=3y/3-3 | | (2*x-3)*(2*x-3)+6*x=(4*x+1)(x-2)-17 | | (8u^3+2u^2+7)+(3u^3-7u+8)=0 | | 20x=8-4x | | (2*x-3)*(2*x-3)+6*x=(4*x+1)(x-2)-14 | | -3y+x=0 | | 1X^2=-1X | | X^3-27i=0 | | 1X^2-12=4X | | 20x=-4x+4 | | 3x^8-7x^8=0 | | 1X^2=3X+18 | | -2(7-3y)-6=-7 | | 3x^7-7x^8=0 | | 10x=8-4x | | 1X^2-2X=15 | | 6x^7+8x^7=0 | | 10=8-4x | | 6X^2+144=60X |

Equations solver categories