v^2+15v+54=03

Simple and best practice solution for v^2+15v+54=03 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 v^2+15v+54=03 equation:


Simplifying
v2 + 15v + 54 = 3

Reorder the terms:
54 + 15v + v2 = 3

Solving
54 + 15v + v2 = 3

Solving for variable 'v'.

Reorder the terms:
54 + -3 + 15v + v2 = 3 + -3

Combine like terms: 54 + -3 = 51
51 + 15v + v2 = 3 + -3

Combine like terms: 3 + -3 = 0
51 + 15v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-51' to each side of the equation.
51 + 15v + -51 + v2 = 0 + -51

Reorder the terms:
51 + -51 + 15v + v2 = 0 + -51

Combine like terms: 51 + -51 = 0
0 + 15v + v2 = 0 + -51
15v + v2 = 0 + -51

Combine like terms: 0 + -51 = -51
15v + v2 = -51

The v term is 15v.  Take half its coefficient (7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
15v + 56.25 + v2 = -51 + 56.25

Reorder the terms:
56.25 + 15v + v2 = -51 + 56.25

Combine like terms: -51 + 56.25 = 5.25
56.25 + 15v + v2 = 5.25

Factor a perfect square on the left side:
(v + 7.5)(v + 7.5) = 5.25

Calculate the square root of the right side: 2.291287847

Break this problem into two subproblems by setting 
(v + 7.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

v + 7.5 = 2.291287847 Simplifying v + 7.5 = 2.291287847 Reorder the terms: 7.5 + v = 2.291287847 Solving 7.5 + v = 2.291287847 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-7.5' to each side of the equation. 7.5 + -7.5 + v = 2.291287847 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + v = 2.291287847 + -7.5 v = 2.291287847 + -7.5 Combine like terms: 2.291287847 + -7.5 = -5.208712153 v = -5.208712153 Simplifying v = -5.208712153

Subproblem 2

v + 7.5 = -2.291287847 Simplifying v + 7.5 = -2.291287847 Reorder the terms: 7.5 + v = -2.291287847 Solving 7.5 + v = -2.291287847 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-7.5' to each side of the equation. 7.5 + -7.5 + v = -2.291287847 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + v = -2.291287847 + -7.5 v = -2.291287847 + -7.5 Combine like terms: -2.291287847 + -7.5 = -9.791287847 v = -9.791287847 Simplifying v = -9.791287847

Solution

The solution to the problem is based on the solutions from the subproblems. v = {-5.208712153, -9.791287847}

See similar equations:

| 3x^3-192x= | | p=2(1)+2(24) | | -v=100-20v | | x=-1/4y+2 | | 6x^3-1=0 | | -400x+4000=5 | | (x+2)(x-5)=(2x+5)(x-5) | | 9x^3-9x= | | 2[1-4(x+2)]=-x | | y-8=x+8 | | 12x^3-12x= | | 450000+22000x=-155000+12000x | | 5(3x-y)=x+3 | | 5-2x=3-4c+13 | | x+(x+33)+(3x-38)=750 | | 50+22/16*128 | | y-8=-4(x-0) | | y=1/2(x-4) | | 450000.00-22000.00y=-155000.00+12000.00x | | y-8=-2(x-4) | | 2/3x+6=4x-44 | | y-8=x-0 | | -9/2x+1 | | 2+s+9=14 | | y=-2/9x-1 | | 1.4x=0.056 | | y=9/2x+1 | | 5+5t=40 | | x=y(1-x) | | 6(5x-5)-29x=7 | | y=2/3x+14/3 | | P+p+4p+31-36=767 |

Equations solver categories