r^2-14r+10=

Simple and best practice solution for r^2-14r+10= 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 r^2-14r+10= equation:


Simplifying
r2 + -14r + 10 = 0

Reorder the terms:
10 + -14r + r2 = 0

Solving
10 + -14r + r2 = 0

Solving for variable 'r'.

Begin completing the square.

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + -14r + -10 + r2 = 0 + -10

Reorder the terms:
10 + -10 + -14r + r2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -14r + r2 = 0 + -10
-14r + r2 = 0 + -10

Combine like terms: 0 + -10 = -10
-14r + r2 = -10

The r term is -14r.  Take half its coefficient (-7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
-14r + 49 + r2 = -10 + 49

Reorder the terms:
49 + -14r + r2 = -10 + 49

Combine like terms: -10 + 49 = 39
49 + -14r + r2 = 39

Factor a perfect square on the left side:
(r + -7)(r + -7) = 39

Calculate the square root of the right side: 6.244997998

Break this problem into two subproblems by setting 
(r + -7) equal to 6.244997998 and -6.244997998.

Subproblem 1

r + -7 = 6.244997998 Simplifying r + -7 = 6.244997998 Reorder the terms: -7 + r = 6.244997998 Solving -7 + r = 6.244997998 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + r = 6.244997998 + 7 Combine like terms: -7 + 7 = 0 0 + r = 6.244997998 + 7 r = 6.244997998 + 7 Combine like terms: 6.244997998 + 7 = 13.244997998 r = 13.244997998 Simplifying r = 13.244997998

Subproblem 2

r + -7 = -6.244997998 Simplifying r + -7 = -6.244997998 Reorder the terms: -7 + r = -6.244997998 Solving -7 + r = -6.244997998 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + r = -6.244997998 + 7 Combine like terms: -7 + 7 = 0 0 + r = -6.244997998 + 7 r = -6.244997998 + 7 Combine like terms: -6.244997998 + 7 = 0.755002002 r = 0.755002002 Simplifying r = 0.755002002

Solution

The solution to the problem is based on the solutions from the subproblems. r = {13.244997998, 0.755002002}

See similar equations:

| 31+(-18)+13+(-25)= | | x^2+x-84=0 | | -15/-4 | | 7x-3(x-8)=3x+24 | | 4y+5=33 | | 3p-5=19 | | -5/26+17/26 | | 5b+35=5b-15 | | 5+4(3x-6)=8-4(2x+1) | | 7-6x-4=-25+4x-12 | | 5x^2+10=-27x | | 16y=58+5x | | p(q+3)=15 | | 8+5+5= | | (2n^4+10n^2)-(4n^4-5n^2+5)= | | 2m+7=9 | | -9+21+8= | | 2r+3=16r+5 | | 7x+18=8x+11 | | 7(a-5)+20=2(a-5) | | 5m^2=-3+16m | | -7+-29+-21= | | -14/8 | | (2n^4-10n^2)-(4n^4-5n^2+5)= | | 4.7p+8.7p-2.6=93.96 | | 2-5x=-7x+12 | | -29+-6+27= | | 6+15+2= | | 9z=z+8z | | 5x+6-6x=6x-2+x | | 5p^2-18p=-16 | | 6x-8y-24=0 |

Equations solver categories