4x^2+0.84x=0.525

Simple and best practice solution for 4x^2+0.84x=0.525 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+0.84x=0.525 equation:


Simplifying
4x2 + 0.84x = 0.525

Reorder the terms:
0.84x + 4x2 = 0.525

Solving
0.84x + 4x2 = 0.525

Solving for variable 'x'.

Reorder the terms:
-0.525 + 0.84x + 4x2 = 0.525 + -0.525

Combine like terms: 0.525 + -0.525 = 0.000
-0.525 + 0.84x + 4x2 = 0.000

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

Divide each side by '4'.
-0.13125 + 0.21x + x2 = 0.000

Move the constant term to the right:

Add '0.13125' to each side of the equation.
-0.13125 + 0.21x + 0.13125 + x2 = 0.000 + 0.13125

Reorder the terms:
-0.13125 + 0.13125 + 0.21x + x2 = 0.000 + 0.13125

Combine like terms: -0.13125 + 0.13125 = 0.00000
0.00000 + 0.21x + x2 = 0.000 + 0.13125
0.21x + x2 = 0.000 + 0.13125

Combine like terms: 0.000 + 0.13125 = 0.13125
0.21x + x2 = 0.13125

The x term is 0.21x.  Take half its coefficient (0.105).
Square it (0.011025) and add it to both sides.

Add '0.011025' to each side of the equation.
0.21x + 0.011025 + x2 = 0.13125 + 0.011025

Reorder the terms:
0.011025 + 0.21x + x2 = 0.13125 + 0.011025

Combine like terms: 0.13125 + 0.011025 = 0.142275
0.011025 + 0.21x + x2 = 0.142275

Factor a perfect square on the left side:
(x + 0.105)(x + 0.105) = 0.142275

Calculate the square root of the right side: 0.377193584

Break this problem into two subproblems by setting 
(x + 0.105) equal to 0.377193584 and -0.377193584.

Subproblem 1

x + 0.105 = 0.377193584 Simplifying x + 0.105 = 0.377193584 Reorder the terms: 0.105 + x = 0.377193584 Solving 0.105 + x = 0.377193584 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.105' to each side of the equation. 0.105 + -0.105 + x = 0.377193584 + -0.105 Combine like terms: 0.105 + -0.105 = 0.000 0.000 + x = 0.377193584 + -0.105 x = 0.377193584 + -0.105 Combine like terms: 0.377193584 + -0.105 = 0.272193584 x = 0.272193584 Simplifying x = 0.272193584

Subproblem 2

x + 0.105 = -0.377193584 Simplifying x + 0.105 = -0.377193584 Reorder the terms: 0.105 + x = -0.377193584 Solving 0.105 + x = -0.377193584 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.105' to each side of the equation. 0.105 + -0.105 + x = -0.377193584 + -0.105 Combine like terms: 0.105 + -0.105 = 0.000 0.000 + x = -0.377193584 + -0.105 x = -0.377193584 + -0.105 Combine like terms: -0.377193584 + -0.105 = -0.482193584 x = -0.482193584 Simplifying x = -0.482193584

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.272193584, -0.482193584}

See similar equations:

| (3x+9x)+(8x+6x)= | | 45s^2-28sh+4h^2=0 | | 8086248x^2-8142129x+55880=0 | | -10x^2+1x=0 | | 3(x)+9=30 | | (x-5)(x^2)=18 | | 8t-1=6t-5 | | -15+6x=45 | | 0=15+12t-4.9t^2 | | 3x+27=7x-9 | | x-9=-2x-18 | | 3(m+4)=6(m-3) | | 8x+14x+2+10x+50= | | 3.8x=2.3x+7.5 | | y^3-27=9y^2-27y | | 9z=15-42 | | 9(x-2)=3(2x+1) | | 3(x+2)+2(x-4)=3(x+3) | | 2.5x+3.8=18.8 | | W^2-30w-136= | | (x^2-7x+12)(2x^2-x-1)=0 | | 72+80+x=180 | | 2(z-3)=5z-3 | | 30t^2+28t-98=0 | | H=-16t^2-100 | | 2x+4x+3x=180 | | 3(x+7)=6(x+3) | | -11+3=m-6 | | 6xy-3xy+9xy=0 | | 4(x+1)+2x=16 | | 4.2x-2.5*2=8.8 | | 2+0.5x= |

Equations solver categories