a^2+2a+1=39

Simple and best practice solution for a^2+2a+1=39 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 a^2+2a+1=39 equation:


Simplifying
a2 + 2a + 1 = 39

Reorder the terms:
1 + 2a + a2 = 39

Solving
1 + 2a + a2 = 39

Solving for variable 'a'.

Reorder the terms:
1 + -39 + 2a + a2 = 39 + -39

Combine like terms: 1 + -39 = -38
-38 + 2a + a2 = 39 + -39

Combine like terms: 39 + -39 = 0
-38 + 2a + a2 = 0

Begin completing the square.

Move the constant term to the right:

Add '38' to each side of the equation.
-38 + 2a + 38 + a2 = 0 + 38

Reorder the terms:
-38 + 38 + 2a + a2 = 0 + 38

Combine like terms: -38 + 38 = 0
0 + 2a + a2 = 0 + 38
2a + a2 = 0 + 38

Combine like terms: 0 + 38 = 38
2a + a2 = 38

The a term is 2a.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2a + 1 + a2 = 38 + 1

Reorder the terms:
1 + 2a + a2 = 38 + 1

Combine like terms: 38 + 1 = 39
1 + 2a + a2 = 39

Factor a perfect square on the left side:
(a + 1)(a + 1) = 39

Calculate the square root of the right side: 6.244997998

Break this problem into two subproblems by setting 
(a + 1) equal to 6.244997998 and -6.244997998.

Subproblem 1

a + 1 = 6.244997998 Simplifying a + 1 = 6.244997998 Reorder the terms: 1 + a = 6.244997998 Solving 1 + a = 6.244997998 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + a = 6.244997998 + -1 Combine like terms: 1 + -1 = 0 0 + a = 6.244997998 + -1 a = 6.244997998 + -1 Combine like terms: 6.244997998 + -1 = 5.244997998 a = 5.244997998 Simplifying a = 5.244997998

Subproblem 2

a + 1 = -6.244997998 Simplifying a + 1 = -6.244997998 Reorder the terms: 1 + a = -6.244997998 Solving 1 + a = -6.244997998 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + a = -6.244997998 + -1 Combine like terms: 1 + -1 = 0 0 + a = -6.244997998 + -1 a = -6.244997998 + -1 Combine like terms: -6.244997998 + -1 = -7.244997998 a = -7.244997998 Simplifying a = -7.244997998

Solution

The solution to the problem is based on the solutions from the subproblems. a = {5.244997998, -7.244997998}

See similar equations:

| sin^2x=2+2cosx | | 3x-4=3x-7 | | 0.5x-4=2x+7 | | 5m=a | | 5(2+3x)=44 | | 2(w+4)+2w=64 | | 7x=3.14 | | 2log(x+1)=6 | | 5x+2=8x-5 | | 8h-15=7-3h | | 4n+8p= | | -17x=34 | | -17=34 | | 0.5+0.5sin(2x)=y | | 2(v-7)-4=0 | | 3x^2+4x+9=8 | | (X+40)+(2x-10)=180 | | (4+7)-(-3+(-6))= | | 35x^2+168=301x | | b^2+81=0 | | 5(2+6x)=44 | | -4a+5=3 | | 10-7+6-(-3)= | | h^2-12h=108 | | 3n=115 | | 12x+12=4x+54 | | 2n^2=14n | | 8-4+(-3)-7= | | 1/2*h^2-12h=54 | | 32cm=3a-10 | | X^3=36x^2 | | X-6=3(y-6) |

Equations solver categories