4x^2+57x=180

Simple and best practice solution for 4x^2+57x=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+57x=180 equation:


Simplifying
4x2 + 57x = 180

Reorder the terms:
57x + 4x2 = 180

Solving
57x + 4x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + 57x + 4x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + 57x + 4x2 = 0

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

Divide each side by '4'.
-45 + 14.25x + x2 = 0

Move the constant term to the right:

Add '45' to each side of the equation.
-45 + 14.25x + 45 + x2 = 0 + 45

Reorder the terms:
-45 + 45 + 14.25x + x2 = 0 + 45

Combine like terms: -45 + 45 = 0
0 + 14.25x + x2 = 0 + 45
14.25x + x2 = 0 + 45

Combine like terms: 0 + 45 = 45
14.25x + x2 = 45

The x term is 14.25x.  Take half its coefficient (7.125).
Square it (50.765625) and add it to both sides.

Add '50.765625' to each side of the equation.
14.25x + 50.765625 + x2 = 45 + 50.765625

Reorder the terms:
50.765625 + 14.25x + x2 = 45 + 50.765625

Combine like terms: 45 + 50.765625 = 95.765625
50.765625 + 14.25x + x2 = 95.765625

Factor a perfect square on the left side:
(x + 7.125)(x + 7.125) = 95.765625

Calculate the square root of the right side: 9.785991263

Break this problem into two subproblems by setting 
(x + 7.125) equal to 9.785991263 and -9.785991263.

Subproblem 1

x + 7.125 = 9.785991263 Simplifying x + 7.125 = 9.785991263 Reorder the terms: 7.125 + x = 9.785991263 Solving 7.125 + x = 9.785991263 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.125' to each side of the equation. 7.125 + -7.125 + x = 9.785991263 + -7.125 Combine like terms: 7.125 + -7.125 = 0.000 0.000 + x = 9.785991263 + -7.125 x = 9.785991263 + -7.125 Combine like terms: 9.785991263 + -7.125 = 2.660991263 x = 2.660991263 Simplifying x = 2.660991263

Subproblem 2

x + 7.125 = -9.785991263 Simplifying x + 7.125 = -9.785991263 Reorder the terms: 7.125 + x = -9.785991263 Solving 7.125 + x = -9.785991263 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.125' to each side of the equation. 7.125 + -7.125 + x = -9.785991263 + -7.125 Combine like terms: 7.125 + -7.125 = 0.000 0.000 + x = -9.785991263 + -7.125 x = -9.785991263 + -7.125 Combine like terms: -9.785991263 + -7.125 = -16.910991263 x = -16.910991263 Simplifying x = -16.910991263

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.660991263, -16.910991263}

See similar equations:

| y=-5(-2.5)+14 | | 4y-1+y+29=8y+30-5y | | 5x+7=-5x+2 | | 2t^2+3t-5=-3 | | 1.7(x-1.4)+0.6x=0.6(x+1.1)-2.7 | | 7y-4x=51 | | x+13=-25 | | 11x-9+5x+5=190 | | 2x-2(-5x+14)=2 | | 5x+1-4x=-4 | | 2x+5-1=6 | | -5*s-13=-68 | | x-25=-9 | | -94x-76=-94-23x | | 4x=5+3.8*x | | 3(x+4)+1=31 | | 0.15(x+50)-0.04(x-20)=2.8 | | -6g+3(-7+4g)=1-g | | 2.5x+9=209+.5x | | 6w+48=48 | | -20=-4-(6x) | | y=-2/3(-1)+1 | | y=-2/3(1)+1 | | 2u=-8 | | z-0.5=0.25z-0.125 | | U-9.9=4.99 | | y=-2/3(0)+1 | | 9(4x+8)=12(12+3x) | | h=-16t^2+1000 | | 32=6(x+4)-8x | | (3x+4)+(2x+2)= | | 8+5(7+5n)=193 |

Equations solver categories