R^2+14R-82=10

Simple and best practice solution for R^2+14R-82=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-82=10 equation:


Simplifying
R2 + 14R + -82 = 10

Reorder the terms:
-82 + 14R + R2 = 10

Solving
-82 + 14R + R2 = 10

Solving for variable 'R'.

Reorder the terms:
-82 + -10 + 14R + R2 = 10 + -10

Combine like terms: -82 + -10 = -92
-92 + 14R + R2 = 10 + -10

Combine like terms: 10 + -10 = 0
-92 + 14R + R2 = 0

Begin completing the square.

Move the constant term to the right:

Add '92' to each side of the equation.
-92 + 14R + 92 + R2 = 0 + 92

Reorder the terms:
-92 + 92 + 14R + R2 = 0 + 92

Combine like terms: -92 + 92 = 0
0 + 14R + R2 = 0 + 92
14R + R2 = 0 + 92

Combine like terms: 0 + 92 = 92
14R + R2 = 92

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 = 92 + 49

Reorder the terms:
49 + 14R + R2 = 92 + 49

Combine like terms: 92 + 49 = 141
49 + 14R + R2 = 141

Factor a perfect square on the left side:
(R + 7)(R + 7) = 141

Calculate the square root of the right side: 11.874342087

Break this problem into two subproblems by setting 
(R + 7) equal to 11.874342087 and -11.874342087.

Subproblem 1

R + 7 = 11.874342087 Simplifying R + 7 = 11.874342087 Reorder the terms: 7 + R = 11.874342087 Solving 7 + R = 11.874342087 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 = 11.874342087 + -7 Combine like terms: 7 + -7 = 0 0 + R = 11.874342087 + -7 R = 11.874342087 + -7 Combine like terms: 11.874342087 + -7 = 4.874342087 R = 4.874342087 Simplifying R = 4.874342087

Subproblem 2

R + 7 = -11.874342087 Simplifying R + 7 = -11.874342087 Reorder the terms: 7 + R = -11.874342087 Solving 7 + R = -11.874342087 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 = -11.874342087 + -7 Combine like terms: 7 + -7 = 0 0 + R = -11.874342087 + -7 R = -11.874342087 + -7 Combine like terms: -11.874342087 + -7 = -18.874342087 R = -18.874342087 Simplifying R = -18.874342087

Solution

The solution to the problem is based on the solutions from the subproblems. R = {4.874342087, -18.874342087}

See similar equations:

| -34+5x=11+2x | | 2x+7=-2+7 | | 12x=3x+9 | | -510=-10(-6x+9) | | -510=10(-6x+9) | | y=16x^2+32x+41 | | 2V^2-26V=-80 | | z/3-1=3 | | h+6(h+11)= | | -52=11n+2n | | 6(x-2)+3=3-15 | | 250*x=2100 | | 645/3 | | 6n=11(n+2) | | 4.9x^2+5x=11.025 | | (2x+1)+x=-39 | | 2g+2=18 | | 4.9x+5x=11.025 | | 5(x-4)=2/5(3x+4)+5 | | 9+3=4+2 | | 7/4m=1/4 | | 3x^2+3y^2+3z^2-12x+24y-6z-45=0 | | 12(n+9)=56 | | 4.9x^2-5x=11.025 | | 7x-11x=-88 | | 2(7-x)-(5-x)=8 | | 13y=8y+30 | | 6=v+4 | | 5(b+10)=77 | | 3:(8/9x0.8-5/6) | | -6=-8+x | | -136+9x=74-5x |

Equations solver categories