4(x^2)-9x+3=0

Simple and best practice solution for 4(x^2)-9x+3=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 4(x^2)-9x+3=0 equation:


Simplifying
4(x2) + -9x + 3 = 0

Reorder the terms:
3 + -9x + 4x2 = 0

Solving
3 + -9x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
0.75 + -2.25x + x2 = 0

Move the constant term to the right:

Add '-0.75' to each side of the equation.
0.75 + -2.25x + -0.75 + x2 = 0 + -0.75

Reorder the terms:
0.75 + -0.75 + -2.25x + x2 = 0 + -0.75

Combine like terms: 0.75 + -0.75 = 0.00
0.00 + -2.25x + x2 = 0 + -0.75
-2.25x + x2 = 0 + -0.75

Combine like terms: 0 + -0.75 = -0.75
-2.25x + x2 = -0.75

The x term is -2.25x.  Take half its coefficient (-1.125).
Square it (1.265625) and add it to both sides.

Add '1.265625' to each side of the equation.
-2.25x + 1.265625 + x2 = -0.75 + 1.265625

Reorder the terms:
1.265625 + -2.25x + x2 = -0.75 + 1.265625

Combine like terms: -0.75 + 1.265625 = 0.515625
1.265625 + -2.25x + x2 = 0.515625

Factor a perfect square on the left side:
(x + -1.125)(x + -1.125) = 0.515625

Calculate the square root of the right side: 0.718070331

Break this problem into two subproblems by setting 
(x + -1.125) equal to 0.718070331 and -0.718070331.

Subproblem 1

x + -1.125 = 0.718070331 Simplifying x + -1.125 = 0.718070331 Reorder the terms: -1.125 + x = 0.718070331 Solving -1.125 + x = 0.718070331 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.125' to each side of the equation. -1.125 + 1.125 + x = 0.718070331 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + x = 0.718070331 + 1.125 x = 0.718070331 + 1.125 Combine like terms: 0.718070331 + 1.125 = 1.843070331 x = 1.843070331 Simplifying x = 1.843070331

Subproblem 2

x + -1.125 = -0.718070331 Simplifying x + -1.125 = -0.718070331 Reorder the terms: -1.125 + x = -0.718070331 Solving -1.125 + x = -0.718070331 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.125' to each side of the equation. -1.125 + 1.125 + x = -0.718070331 + 1.125 Combine like terms: -1.125 + 1.125 = 0.000 0.000 + x = -0.718070331 + 1.125 x = -0.718070331 + 1.125 Combine like terms: -0.718070331 + 1.125 = 0.406929669 x = 0.406929669 Simplifying x = 0.406929669

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.843070331, 0.406929669}

See similar equations:

| (x+2)(x+8)=2(5x+16) | | (x+12.1)+x=723.9 | | 66/9 | | 10+3x/5 | | x^2+2x^2=6x^2 | | x^2+2x^2=6 | | 3log(9)=2 | | 0.8f+06=5 | | 3x-20=-52 | | x-(0.25x+1500)=0 | | 3x+5=x^2+8x+11 | | 3(z*z)-8z-16=0 | | 4(3+5)-4=3+2(x-2) | | -2x-18=24 | | 3t^2+20t+25=0 | | 5x+x+5=35 | | 3log(4x+2)=2 | | (x+6.1)+x=723.6 | | 5y+1=3y+9 | | 3x-x+2=8 | | 55=(4x-5) | | 10x-7x+1=28 | | 5/6+5x=6x-2/3 | | 1/10y+2=-9 | | 2.34=s+1.06 | | -9/12+2/9 | | 2(x+7)(x-3)=90 | | 4z+7-6z=11 | | 3x+5yi=6+20i | | 6t-8=2(2t-1) | | 7x+1=6x-10 | | 8(x-3)=2x+30 |

Equations solver categories