A^2+4A-54=0

Simple and best practice solution for A^2+4A-54=0 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+4A-54=0 equation:


Simplifying
A2 + 4A + -54 = 0

Reorder the terms:
-54 + 4A + A2 = 0

Solving
-54 + 4A + A2 = 0

Solving for variable 'A'.

Begin completing the square.

Move the constant term to the right:

Add '54' to each side of the equation.
-54 + 4A + 54 + A2 = 0 + 54

Reorder the terms:
-54 + 54 + 4A + A2 = 0 + 54

Combine like terms: -54 + 54 = 0
0 + 4A + A2 = 0 + 54
4A + A2 = 0 + 54

Combine like terms: 0 + 54 = 54
4A + A2 = 54

The A term is 4A.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4A + 4 + A2 = 54 + 4

Reorder the terms:
4 + 4A + A2 = 54 + 4

Combine like terms: 54 + 4 = 58
4 + 4A + A2 = 58

Factor a perfect square on the left side:
(A + 2)(A + 2) = 58

Calculate the square root of the right side: 7.615773106

Break this problem into two subproblems by setting 
(A + 2) equal to 7.615773106 and -7.615773106.

Subproblem 1

A + 2 = 7.615773106 Simplifying A + 2 = 7.615773106 Reorder the terms: 2 + A = 7.615773106 Solving 2 + A = 7.615773106 Solving for variable 'A'. Move all terms containing A to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + A = 7.615773106 + -2 Combine like terms: 2 + -2 = 0 0 + A = 7.615773106 + -2 A = 7.615773106 + -2 Combine like terms: 7.615773106 + -2 = 5.615773106 A = 5.615773106 Simplifying A = 5.615773106

Subproblem 2

A + 2 = -7.615773106 Simplifying A + 2 = -7.615773106 Reorder the terms: 2 + A = -7.615773106 Solving 2 + A = -7.615773106 Solving for variable 'A'. Move all terms containing A to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + A = -7.615773106 + -2 Combine like terms: 2 + -2 = 0 0 + A = -7.615773106 + -2 A = -7.615773106 + -2 Combine like terms: -7.615773106 + -2 = -9.615773106 A = -9.615773106 Simplifying A = -9.615773106

Solution

The solution to the problem is based on the solutions from the subproblems. A = {5.615773106, -9.615773106}

See similar equations:

| 5p-11-4p=8-5 | | -3(2n-5)=(-12n-30) | | X^5-7=0 | | 3r-1=r+3 | | 7x-2=2x+8+3x+14 | | (x)(x+3)=550 | | 16n=7n-15-6n | | 0.16y+0.05(y+6000)=930 | | 3-8x=-9-1 | | 3x+3+3x=9 | | -3(-7+2x)-7(-x-4)=48 | | 1=0.3x-0.6x-2 | | (5y+1)+(3y)+y=180 | | 4y^2-34y+38=0 | | 4p+24+4p=88-16 | | (6x)(3x)=180 | | 8s+10s-13s+s= | | 56p=38 | | -20=-5x+7x+2 | | x^4y^2=y^24 | | 14+16a-8=18 | | 2=-(x^2+x) | | 12x^3-96= | | 1+41x+159x+1=120 | | (3y-4z)(5y-7z)= | | 38=8r-26+8r | | b-0.24=0.4-3b | | x^3+x^2-3x-3= | | 6(2x+1)+3x=8(2x-3)-1 | | x+x+49+91=116 | | 4-8p=7(p+42) | | 2(5+3x)=15+6x |

Equations solver categories