3.74x^2-11.45x+4.15=0

Simple and best practice solution for 3.74x^2-11.45x+4.15=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 3.74x^2-11.45x+4.15=0 equation:


Simplifying
3.74x2 + -11.45x + 4.15 = 0

Reorder the terms:
4.15 + -11.45x + 3.74x2 = 0

Solving
4.15 + -11.45x + 3.74x2 = 0

Solving for variable 'x'.

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

Divide each side by '3.74'.
1.109625668 + -3.061497326x + x2 = 0

Move the constant term to the right:

Add '-1.109625668' to each side of the equation.
1.109625668 + -3.061497326x + -1.109625668 + x2 = 0 + -1.109625668

Reorder the terms:
1.109625668 + -1.109625668 + -3.061497326x + x2 = 0 + -1.109625668

Combine like terms: 1.109625668 + -1.109625668 = 0.000000000
0.000000000 + -3.061497326x + x2 = 0 + -1.109625668
-3.061497326x + x2 = 0 + -1.109625668

Combine like terms: 0 + -1.109625668 = -1.109625668
-3.061497326x + x2 = -1.109625668

The x term is -3.061497326x.  Take half its coefficient (-1.530748663).
Square it (2.343191469) and add it to both sides.

Add '2.343191469' to each side of the equation.
-3.061497326x + 2.343191469 + x2 = -1.109625668 + 2.343191469

Reorder the terms:
2.343191469 + -3.061497326x + x2 = -1.109625668 + 2.343191469

Combine like terms: -1.109625668 + 2.343191469 = 1.233565801
2.343191469 + -3.061497326x + x2 = 1.233565801

Factor a perfect square on the left side:
(x + -1.530748663)(x + -1.530748663) = 1.233565801

Calculate the square root of the right side: 1.110660074

Break this problem into two subproblems by setting 
(x + -1.530748663) equal to 1.110660074 and -1.110660074.

Subproblem 1

x + -1.530748663 = 1.110660074 Simplifying x + -1.530748663 = 1.110660074 Reorder the terms: -1.530748663 + x = 1.110660074 Solving -1.530748663 + x = 1.110660074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.530748663' to each side of the equation. -1.530748663 + 1.530748663 + x = 1.110660074 + 1.530748663 Combine like terms: -1.530748663 + 1.530748663 = 0.000000000 0.000000000 + x = 1.110660074 + 1.530748663 x = 1.110660074 + 1.530748663 Combine like terms: 1.110660074 + 1.530748663 = 2.641408737 x = 2.641408737 Simplifying x = 2.641408737

Subproblem 2

x + -1.530748663 = -1.110660074 Simplifying x + -1.530748663 = -1.110660074 Reorder the terms: -1.530748663 + x = -1.110660074 Solving -1.530748663 + x = -1.110660074 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.530748663' to each side of the equation. -1.530748663 + 1.530748663 + x = -1.110660074 + 1.530748663 Combine like terms: -1.530748663 + 1.530748663 = 0.000000000 0.000000000 + x = -1.110660074 + 1.530748663 x = -1.110660074 + 1.530748663 Combine like terms: -1.110660074 + 1.530748663 = 0.420088589 x = 0.420088589 Simplifying x = 0.420088589

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.641408737, 0.420088589}

See similar equations:

| 11m-(8)-(6m)=22 | | 2x+2-x=5 | | 2(8m-6)=-34+5m | | 2t^2+12t-13= | | y=2+025x | | 4x+20=7x+14 | | 9(z+2)-2(z-3)=3(z-2)+3(z-2) | | 9z+10-5z=2+3z+6 | | 2(j-11)=4 | | x^2+5x+2=4x+2 | | Y=-2x+60 | | x+-9=6.7 | | 3x^2-240=0 | | log(5n-8)=log(4n+5) | | 7(x+2)=6(x-3)+x | | x^2y+xy^2= | | 29=7+9+c | | 5n-7(n+2)=40+7n | | -7+v-3=6+v | | 14x^2+5x-6=0 | | -12.18+8.3w=8.88+11w | | 2x-4(x-3)=-7-x+10 | | 3b+6p=0 | | 4+8-3=92 | | 10x-5y= | | 0x+3y=-4 | | 3x+15=5x-18 | | 3(2x+9)=-23+8 | | -2x+14=3x-6 | | 45k+27=54+6k | | 83-x=11 | | k+25=75 |

Equations solver categories