(v^2-3v+4)+(-2v^2+7v+5)=

Simple and best practice solution for (v^2-3v+4)+(-2v^2+7v+5)= 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^2-3v+4)+(-2v^2+7v+5)= equation:


Simplifying
(v2 + -3v + 4) + (-2v2 + 7v + 5) = 0

Reorder the terms:
(4 + -3v + v2) + (-2v2 + 7v + 5) = 0

Remove parenthesis around (4 + -3v + v2)
4 + -3v + v2 + (-2v2 + 7v + 5) = 0

Reorder the terms:
4 + -3v + v2 + (5 + 7v + -2v2) = 0

Remove parenthesis around (5 + 7v + -2v2)
4 + -3v + v2 + 5 + 7v + -2v2 = 0

Reorder the terms:
4 + 5 + -3v + 7v + v2 + -2v2 = 0

Combine like terms: 4 + 5 = 9
9 + -3v + 7v + v2 + -2v2 = 0

Combine like terms: -3v + 7v = 4v
9 + 4v + v2 + -2v2 = 0

Combine like terms: v2 + -2v2 = -1v2
9 + 4v + -1v2 = 0

Solving
9 + 4v + -1v2 = 0

Solving for variable 'v'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-9 + -4v + v2 = 0

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -4v + 9 + v2 = 0 + 9

Reorder the terms:
-9 + 9 + -4v + v2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -4v + v2 = 0 + 9
-4v + v2 = 0 + 9

Combine like terms: 0 + 9 = 9
-4v + v2 = 9

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

Add '4' to each side of the equation.
-4v + 4 + v2 = 9 + 4

Reorder the terms:
4 + -4v + v2 = 9 + 4

Combine like terms: 9 + 4 = 13
4 + -4v + v2 = 13

Factor a perfect square on the left side:
(v + -2)(v + -2) = 13

Calculate the square root of the right side: 3.605551275

Break this problem into two subproblems by setting 
(v + -2) equal to 3.605551275 and -3.605551275.

Subproblem 1

v + -2 = 3.605551275 Simplifying v + -2 = 3.605551275 Reorder the terms: -2 + v = 3.605551275 Solving -2 + v = 3.605551275 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + v = 3.605551275 + 2 Combine like terms: -2 + 2 = 0 0 + v = 3.605551275 + 2 v = 3.605551275 + 2 Combine like terms: 3.605551275 + 2 = 5.605551275 v = 5.605551275 Simplifying v = 5.605551275

Subproblem 2

v + -2 = -3.605551275 Simplifying v + -2 = -3.605551275 Reorder the terms: -2 + v = -3.605551275 Solving -2 + v = -3.605551275 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + v = -3.605551275 + 2 Combine like terms: -2 + 2 = 0 0 + v = -3.605551275 + 2 v = -3.605551275 + 2 Combine like terms: -3.605551275 + 2 = -1.605551275 v = -1.605551275 Simplifying v = -1.605551275

Solution

The solution to the problem is based on the solutions from the subproblems. v = {5.605551275, -1.605551275}

See similar equations:

| 3b-9=12 | | a(n)=a(n-1)+a(n-2) | | 5(8+X)+2(7X-3)=91 | | 6(x-1)=9(-4) | | 1.5x+3-3x=6 | | x-4*2+2x=2x+4 | | -6+-32= | | 8x-4+5x=7x+x+14 | | 2p+q=7 | | 4p+2q=23 | | 16+8x=29+21x+3 | | (-3)+5+4-9*3= | | 6ln(5x+6)=22 | | 2x+5x-8=x+10x-38 | | 18ln+15lnx=11 | | 5+5(3X+2)-3X=2(2X-1)+49 | | 18ln+15ln=11 | | -3y-7=y-7 | | 0=40x^3-24x | | -3w^2(-5w^4)= | | -2b-8=5b+25 | | 2(4m+1)(m-1)=0 | | H(t)=60t-t^2 | | 0.003g= | | 12.5x^2+15x+.5=0 | | (Sinx-5)(2cosx-1)=0 | | 2r^3+12r^2=54r | | 3c=23 | | 4a-5=2a+3 | | 6x+8.6=2(4x-3.7) | | Ln(x)*ln(x^6)=7 | | 2x^2+3x=5 |

Equations solver categories