3234.1372=2*r^2*3.14+6.28*r*100.2

Simple and best practice solution for 3234.1372=2*r^2*3.14+6.28*r*100.2 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 3234.1372=2*r^2*3.14+6.28*r*100.2 equation:


Simplifying
3234.1372 = 2r2 * 3.14 + 6.28r * 100.2

Reorder the terms for easier multiplication:
3234.1372 = 2 * 3.14r2 + 6.28r * 100.2

Multiply 2 * 3.14
3234.1372 = 6.28r2 + 6.28r * 100.2

Reorder the terms for easier multiplication:
3234.1372 = 6.28r2 + 6.28 * 100.2r

Multiply 6.28 * 100.2
3234.1372 = 6.28r2 + 629.256r

Reorder the terms:
3234.1372 = 629.256r + 6.28r2

Solving
3234.1372 = 629.256r + 6.28r2

Solving for variable 'r'.

Reorder the terms:
3234.1372 + -629.256r + -6.28r2 = 629.256r + -629.256r + 6.28r2 + -6.28r2

Combine like terms: 629.256r + -629.256r = 0.000
3234.1372 + -629.256r + -6.28r2 = 0.000 + 6.28r2 + -6.28r2
3234.1372 + -629.256r + -6.28r2 = 6.28r2 + -6.28r2

Combine like terms: 6.28r2 + -6.28r2 = 0.00
3234.1372 + -629.256r + -6.28r2 = 0.00

Begin completing the square.  Divide all terms by
-6.28 the coefficient of the squared term: 

Divide each side by '-6.28'.
-514.99 + 100.2r + r2 = 0

Move the constant term to the right:

Add '514.99' to each side of the equation.
-514.99 + 100.2r + 514.99 + r2 = 0 + 514.99

Reorder the terms:
-514.99 + 514.99 + 100.2r + r2 = 0 + 514.99

Combine like terms: -514.99 + 514.99 = 0.00
0.00 + 100.2r + r2 = 0 + 514.99
100.2r + r2 = 0 + 514.99

Combine like terms: 0 + 514.99 = 514.99
100.2r + r2 = 514.99

The r term is 100.2r.  Take half its coefficient (50.1).
Square it (2510.01) and add it to both sides.

Add '2510.01' to each side of the equation.
100.2r + 2510.01 + r2 = 514.99 + 2510.01

Reorder the terms:
2510.01 + 100.2r + r2 = 514.99 + 2510.01

Combine like terms: 514.99 + 2510.01 = 3025
2510.01 + 100.2r + r2 = 3025

Factor a perfect square on the left side:
(r + 50.1)(r + 50.1) = 3025

Calculate the square root of the right side: 55

Break this problem into two subproblems by setting 
(r + 50.1) equal to 55 and -55.

Subproblem 1

r + 50.1 = 55 Simplifying r + 50.1 = 55 Reorder the terms: 50.1 + r = 55 Solving 50.1 + r = 55 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-50.1' to each side of the equation. 50.1 + -50.1 + r = 55 + -50.1 Combine like terms: 50.1 + -50.1 = 0.0 0.0 + r = 55 + -50.1 r = 55 + -50.1 Combine like terms: 55 + -50.1 = 4.9 r = 4.9 Simplifying r = 4.9

Subproblem 2

r + 50.1 = -55 Simplifying r + 50.1 = -55 Reorder the terms: 50.1 + r = -55 Solving 50.1 + r = -55 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-50.1' to each side of the equation. 50.1 + -50.1 + r = -55 + -50.1 Combine like terms: 50.1 + -50.1 = 0.0 0.0 + r = -55 + -50.1 r = -55 + -50.1 Combine like terms: -55 + -50.1 = -105.1 r = -105.1 Simplifying r = -105.1

Solution

The solution to the problem is based on the solutions from the subproblems. r = {4.9, -105.1}

See similar equations:

| -9=-17u | | -6x-25y=100 | | 0.30(z-100000.00)=202500 | | 2*3=3*2 | | 6t^2+72t+13t+156=0 | | 11t+4.905t^2=2 | | 2(b+1)-(7+b)=2 | | b^3+14b^2+24b=0 | | 0.30(z-100000.00)=1000000 | | 1.7x+3.6x+1.7x=180 | | -9u-18=8u+33 | | 7y+1=2(3y+6)+3y | | 4b+4b+4b=180 | | 2x-7x+6=5x-9 | | 12x-(2x-6)=56 | | 3v-5=5v+5 | | -9x+6y=-60 | | 29e+4=14+8e | | 2676.222=2*63.585+28.26h | | 5p^2-23p-42=0 | | (-2x-6)=x+3 | | 11x+8x+5x=180 | | 10=2+23t-(16t^2) | | 56=-6r | | 9w-16=48 | | 4y+12=-4y-36 | | 0.80(z-100.00)=150.00 | | 6x=7-2(4-4x) | | 3x^2+x+3x+1=133 | | 2x-16=x+7 | | 5v^2-28v-12=0 | | 3a+6b-6a+4ab-9b= |

Equations solver categories