3a^2-4a+7=0

Simple and best practice solution for 3a^2-4a+7=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 3a^2-4a+7=0 equation:


Simplifying
3a2 + -4a + 7 = 0

Reorder the terms:
7 + -4a + 3a2 = 0

Solving
7 + -4a + 3a2 = 0

Solving for variable 'a'.

Begin completing the square.  Divide all terms by
3 the coefficient of the squared term: 

Divide each side by '3'.
2.333333333 + -1.333333333a + a2 = 0

Move the constant term to the right:

Add '-2.333333333' to each side of the equation.
2.333333333 + -1.333333333a + -2.333333333 + a2 = 0 + -2.333333333

Reorder the terms:
2.333333333 + -2.333333333 + -1.333333333a + a2 = 0 + -2.333333333

Combine like terms: 2.333333333 + -2.333333333 = 0.000000000
0.000000000 + -1.333333333a + a2 = 0 + -2.333333333
-1.333333333a + a2 = 0 + -2.333333333

Combine like terms: 0 + -2.333333333 = -2.333333333
-1.333333333a + a2 = -2.333333333

The a term is -1.333333333a.  Take half its coefficient (-0.6666666665).
Square it (0.4444444442) and add it to both sides.

Add '0.4444444442' to each side of the equation.
-1.333333333a + 0.4444444442 + a2 = -2.333333333 + 0.4444444442

Reorder the terms:
0.4444444442 + -1.333333333a + a2 = -2.333333333 + 0.4444444442

Combine like terms: -2.333333333 + 0.4444444442 = -1.8888888888
0.4444444442 + -1.333333333a + a2 = -1.8888888888

Factor a perfect square on the left side:
(a + -0.6666666665)(a + -0.6666666665) = -1.8888888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| v+3/5=1/6 | | 64x^2-x=96 | | y=3/7(6.875)+4/7 | | 3x^2+7b-6=0 | | 10z^2-16z=0 | | 8x^2+96=x | | 5a/10b | | -5(-4n-1)=5 | | 2x-1-6x=-49 | | 3(x+1)-24=2(1-x) | | 20=x^(19/4) | | x-7+2x+4=9 | | 5x-9-3x=3x-2 | | w^2+2=12 | | 5-10x=105-45x | | 3/5h | | -11n=-77 | | 18+14z=14z+18 | | 7.5(x-3)=-0.5x+17.5 | | B/13=9/13 | | 4(2p-5)= | | 6m^2+27m=0 | | 1a+3a=3a+x/1 | | 3=22-x | | 1a+3a=3a+x | | 9(6x-4)= | | -6(2+r)=2(3r-6) | | x^2+2n-15=0 | | 27z+54=19+27z | | 32x^2-48xy+18y^2-15x-20y-4=0 | | 1000+5X=500+15X | | 1+2(2x-3)=6(x+5)+5 |

Equations solver categories