4x^2-6x-2x^2+19x=180

Simple and best practice solution for 4x^2-6x-2x^2+19x=180 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 4x^2-6x-2x^2+19x=180 equation:


Simplifying
4x2 + -6x + -2x2 + 19x = 180

Reorder the terms:
-6x + 19x + 4x2 + -2x2 = 180

Combine like terms: -6x + 19x = 13x
13x + 4x2 + -2x2 = 180

Combine like terms: 4x2 + -2x2 = 2x2
13x + 2x2 = 180

Solving
13x + 2x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + 13x + 2x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + 13x + 2x2 = 0

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

Divide each side by '2'.
-90 + 6.5x + x2 = 0

Move the constant term to the right:

Add '90' to each side of the equation.
-90 + 6.5x + 90 + x2 = 0 + 90

Reorder the terms:
-90 + 90 + 6.5x + x2 = 0 + 90

Combine like terms: -90 + 90 = 0
0 + 6.5x + x2 = 0 + 90
6.5x + x2 = 0 + 90

Combine like terms: 0 + 90 = 90
6.5x + x2 = 90

The x term is 6.5x.  Take half its coefficient (3.25).
Square it (10.5625) and add it to both sides.

Add '10.5625' to each side of the equation.
6.5x + 10.5625 + x2 = 90 + 10.5625

Reorder the terms:
10.5625 + 6.5x + x2 = 90 + 10.5625

Combine like terms: 90 + 10.5625 = 100.5625
10.5625 + 6.5x + x2 = 100.5625

Factor a perfect square on the left side:
(x + 3.25)(x + 3.25) = 100.5625

Calculate the square root of the right side: 10.02808556

Break this problem into two subproblems by setting 
(x + 3.25) equal to 10.02808556 and -10.02808556.

Subproblem 1

x + 3.25 = 10.02808556 Simplifying x + 3.25 = 10.02808556 Reorder the terms: 3.25 + x = 10.02808556 Solving 3.25 + x = 10.02808556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.25' to each side of the equation. 3.25 + -3.25 + x = 10.02808556 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + x = 10.02808556 + -3.25 x = 10.02808556 + -3.25 Combine like terms: 10.02808556 + -3.25 = 6.77808556 x = 6.77808556 Simplifying x = 6.77808556

Subproblem 2

x + 3.25 = -10.02808556 Simplifying x + 3.25 = -10.02808556 Reorder the terms: 3.25 + x = -10.02808556 Solving 3.25 + x = -10.02808556 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.25' to each side of the equation. 3.25 + -3.25 + x = -10.02808556 + -3.25 Combine like terms: 3.25 + -3.25 = 0.00 0.00 + x = -10.02808556 + -3.25 x = -10.02808556 + -3.25 Combine like terms: -10.02808556 + -3.25 = -13.27808556 x = -13.27808556 Simplifying x = -13.27808556

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.77808556, -13.27808556}

See similar equations:

| 16+-12-7= | | 8t+23=7 | | -5x+5(3x+9)=-15 | | p(81)=10(81)-7 | | 9x-2=8x+ | | n-14=45 | | 4.9t^2-24.5t+19.6=0 | | .5y=17 | | -4(7-3x)=9x+2 | | 4.9t^2-24.5+19.6=0 | | 5m-10=m | | 2(9x+3)+10=-2+2x | | 0.5(x+2)=0.9x+0.2 | | 246=6(-6x+5) | | 6y+13y-10=180 | | 3x+4y=90 | | -24+k=k-6(4k+8) | | p(73)=10(73)-7 | | J+3=-3 | | 3(n-1)=5n+3+n | | 1-3x=-(x+3) | | 0.5x(x+2)=0.9x+0.2 | | 4n-4=10n+50 | | 72=8-4m | | 14c-4=12c | | -5x-2(2x+3)=-60 | | 5(2g+1)=-3(g-5) | | -9x^2-3x=0 | | f(t)=2cos(t)+sin(2t) | | -5m+8-4m=3(2-3m)-5 | | 5x+8+10x-8=180 | | -(5x+1)+4=6+x |

Equations solver categories