3x^2-15x+45=0

Simple and best practice solution for 3x^2-15x+45=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 3x^2-15x+45=0 equation:


Simplifying
3x2 + -15x + 45 = 0

Reorder the terms:
45 + -15x + 3x2 = 0

Solving
45 + -15x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(15 + -5x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(15 + -5x + x2)' equal to zero and attempt to solve: Simplifying 15 + -5x + x2 = 0 Solving 15 + -5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-15' to each side of the equation. 15 + -5x + -15 + x2 = 0 + -15 Reorder the terms: 15 + -15 + -5x + x2 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -5x + x2 = 0 + -15 -5x + x2 = 0 + -15 Combine like terms: 0 + -15 = -15 -5x + x2 = -15 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -15 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -15 + 6.25 Combine like terms: -15 + 6.25 = -8.75 6.25 + -5x + x2 = -8.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = -8.75 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:

| 2(-2+x)-1(x-4)=0 | | (x-6)(5x+3)=0 | | 27=y | | (x+3)(6x+7)=0 | | 2y-8=-y+4 | | 6x^2-8x+3=0 | | 0=-5h-2h | | 4h*6h= | | -2+2y=-4 | | 3-4r=10r+10 | | (3m-4n-7)-(8m+n-6)= | | 32+5n=75 | | 2y=4x-3 | | 2+11x=12x-6 | | (3m-4n-7)(8m+n-6)= | | y^2-16x-6y+25=0 | | 3(a-2)=9(a+2) | | 9x-15= | | 3=12-3x | | -7h-4=h+4 | | 62-c=42 | | -3b-2a-4c+5b-8a= | | 4d-8=19 | | 4(x-4)-11x= | | 6c-12=48 | | 25h=20h+15 | | 1-2x=16-5x | | 4y+6=-14 | | 9(6x+3)= | | 7x=11x+16 | | 3x+-7=-8 | | 9a-4a+a-10= |

Equations solver categories