5a^2+a=2

Simple and best practice solution for 5a^2+a=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 5a^2+a=2 equation:


Simplifying
5a2 + a = 2

Reorder the terms:
a + 5a2 = 2

Solving
a + 5a2 = 2

Solving for variable 'a'.

Reorder the terms:
-2 + a + 5a2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + a + 5a2 = 0

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

Divide each side by '5'.
-0.4 + 0.2a + a2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + 0.2a + 0.4 + a2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + 0.2a + a2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.2a + a2 = 0 + 0.4
0.2a + a2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
0.2a + a2 = 0.4

The a term is a.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.2a + 0.25 + a2 = 0.4 + 0.25

Reorder the terms:
0.25 + 0.2a + a2 = 0.4 + 0.25

Combine like terms: 0.4 + 0.25 = 0.65
0.25 + 0.2a + a2 = 0.65

Factor a perfect square on the left side:
(a + 0.5)(a + 0.5) = 0.65

Calculate the square root of the right side: 0.806225775

Break this problem into two subproblems by setting 
(a + 0.5) equal to 0.806225775 and -0.806225775.

Subproblem 1

a + 0.5 = 0.806225775 Simplifying a + 0.5 = 0.806225775 Reorder the terms: 0.5 + a = 0.806225775 Solving 0.5 + a = 0.806225775 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + a = 0.806225775 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + a = 0.806225775 + -0.5 a = 0.806225775 + -0.5 Combine like terms: 0.806225775 + -0.5 = 0.306225775 a = 0.306225775 Simplifying a = 0.306225775

Subproblem 2

a + 0.5 = -0.806225775 Simplifying a + 0.5 = -0.806225775 Reorder the terms: 0.5 + a = -0.806225775 Solving 0.5 + a = -0.806225775 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + a = -0.806225775 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + a = -0.806225775 + -0.5 a = -0.806225775 + -0.5 Combine like terms: -0.806225775 + -0.5 = -1.306225775 a = -1.306225775 Simplifying a = -1.306225775

Solution

The solution to the problem is based on the solutions from the subproblems. a = {0.306225775, -1.306225775}

See similar equations:

| 4n+17= | | 2x-27+x+53= | | -4r-28=-59-r | | 23.18=x-ln(1+x) | | -2/9x-8-5 | | 9(7-9(-7))= | | Ix+4I=3x-2 | | y=2(40)+14 | | x^3-3x^2+5x-4=0 | | -4=5(x-4)-(x-8) | | z-7z=4z-8-z | | Y^2+4x^2=1 | | (2x^1/5y^3)(1/3x^-2/3y^2/9) | | 2/7x=1/4 | | 8s^8t^4-20s^4t^3=0 | | 2x=30-180 | | 5(v-2)-8v=-19 | | 8s^8t^4-25xy^2=0 | | 8q/3 | | 15+9f=7(2f+4) | | 4x^2-7x+k=0 | | x+43=56 | | 5b-8-6=-17 | | x+11=74 | | 4r-8-3r+3=2r+12 | | 5x-2(2x+14)=12 | | Z+1(2z+3)=15 | | 5t^2-55t+90= | | -5/8x-2-5 | | 5x-2(-2x+14)=12 | | 33b=c/t | | z-4z=9z-5-z |

Equations solver categories