6u^2-9u=1.5

Simple and best practice solution for 6u^2-9u=1.5 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 6u^2-9u=1.5 equation:


Simplifying
6u2 + -9u = 1.5

Reorder the terms:
-9u + 6u2 = 1.5

Solving
-9u + 6u2 = 1.5

Solving for variable 'u'.

Reorder the terms:
-1.5 + -9u + 6u2 = 1.5 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
-1.5 + -9u + 6u2 = 0.0

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

Divide each side by '6'.
-0.25 + -1.5u + u2 = 0.0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + -1.5u + 0.25 + u2 = 0.0 + 0.25

Reorder the terms:
-0.25 + 0.25 + -1.5u + u2 = 0.0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + -1.5u + u2 = 0.0 + 0.25
-1.5u + u2 = 0.0 + 0.25

Combine like terms: 0.0 + 0.25 = 0.25
-1.5u + u2 = 0.25

The u term is -1.5u.  Take half its coefficient (-0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
-1.5u + 0.5625 + u2 = 0.25 + 0.5625

Reorder the terms:
0.5625 + -1.5u + u2 = 0.25 + 0.5625

Combine like terms: 0.25 + 0.5625 = 0.8125
0.5625 + -1.5u + u2 = 0.8125

Factor a perfect square on the left side:
(u + -0.75)(u + -0.75) = 0.8125

Calculate the square root of the right side: 0.901387819

Break this problem into two subproblems by setting 
(u + -0.75) equal to 0.901387819 and -0.901387819.

Subproblem 1

u + -0.75 = 0.901387819 Simplifying u + -0.75 = 0.901387819 Reorder the terms: -0.75 + u = 0.901387819 Solving -0.75 + u = 0.901387819 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + u = 0.901387819 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + u = 0.901387819 + 0.75 u = 0.901387819 + 0.75 Combine like terms: 0.901387819 + 0.75 = 1.651387819 u = 1.651387819 Simplifying u = 1.651387819

Subproblem 2

u + -0.75 = -0.901387819 Simplifying u + -0.75 = -0.901387819 Reorder the terms: -0.75 + u = -0.901387819 Solving -0.75 + u = -0.901387819 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.75' to each side of the equation. -0.75 + 0.75 + u = -0.901387819 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + u = -0.901387819 + 0.75 u = -0.901387819 + 0.75 Combine like terms: -0.901387819 + 0.75 = -0.151387819 u = -0.151387819 Simplifying u = -0.151387819

Solution

The solution to the problem is based on the solutions from the subproblems. u = {1.651387819, -0.151387819}

See similar equations:

| -5y+5y= | | 3x+-3x= | | (x+y)+(z+w)=x+(y+(z+w)) | | y=-2-4x | | 18x+9=216+43 | | 12x+15y=483 | | 8g=7 | | (5x^2-14x+8)=0 | | 2m-8=15 | | 4m+2=40 | | (12x^2+50x+50)=0 | | ln(2x+1)=2-ln(3x-4) | | (a+b)c=c(a+b) | | 6x-54=8 | | s^3+5s^2+12s+8=0 | | 2+3t=17 | | 7.3=-1.2-2x | | 8x-3(4)=-9(4) | | X^5+7x^4y-8x^3y^2= | | 2x^6+20x^5-78x^4= | | 8x-3y=-9(4) | | 4x^7+44x^6-104x^5= | | X^2-36+324=0 | | -6x+2(x-7)=-18 | | y=5x^2-20x-13 | | y=5x^2+20x-16 | | solvey=6ln(x)forx | | (723-1)2= | | 7x^2+22x-70= | | xyp^2+p(3x^2-2y^2)-6xy=0 | | 3x-4+1=2x-5+5z | | x-20=3x+10 |

Equations solver categories