(7v^2-5v-4)+(6v^2-3v+2)=

Simple and best practice solution for (7v^2-5v-4)+(6v^2-3v+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 (7v^2-5v-4)+(6v^2-3v+2)= equation:


Simplifying
(7v2 + -5v + -4) + (6v2 + -3v + 2) = 0

Reorder the terms:
(-4 + -5v + 7v2) + (6v2 + -3v + 2) = 0

Remove parenthesis around (-4 + -5v + 7v2)
-4 + -5v + 7v2 + (6v2 + -3v + 2) = 0

Reorder the terms:
-4 + -5v + 7v2 + (2 + -3v + 6v2) = 0

Remove parenthesis around (2 + -3v + 6v2)
-4 + -5v + 7v2 + 2 + -3v + 6v2 = 0

Reorder the terms:
-4 + 2 + -5v + -3v + 7v2 + 6v2 = 0

Combine like terms: -4 + 2 = -2
-2 + -5v + -3v + 7v2 + 6v2 = 0

Combine like terms: -5v + -3v = -8v
-2 + -8v + 7v2 + 6v2 = 0

Combine like terms: 7v2 + 6v2 = 13v2
-2 + -8v + 13v2 = 0

Solving
-2 + -8v + 13v2 = 0

Solving for variable 'v'.

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

Divide each side by '13'.
-0.1538461538 + -0.6153846154v + v2 = 0

Move the constant term to the right:

Add '0.1538461538' to each side of the equation.
-0.1538461538 + -0.6153846154v + 0.1538461538 + v2 = 0 + 0.1538461538

Reorder the terms:
-0.1538461538 + 0.1538461538 + -0.6153846154v + v2 = 0 + 0.1538461538

Combine like terms: -0.1538461538 + 0.1538461538 = 0.0000000000
0.0000000000 + -0.6153846154v + v2 = 0 + 0.1538461538
-0.6153846154v + v2 = 0 + 0.1538461538

Combine like terms: 0 + 0.1538461538 = 0.1538461538
-0.6153846154v + v2 = 0.1538461538

The v term is -0.6153846154v.  Take half its coefficient (-0.3076923077).
Square it (0.09467455622) and add it to both sides.

Add '0.09467455622' to each side of the equation.
-0.6153846154v + 0.09467455622 + v2 = 0.1538461538 + 0.09467455622

Reorder the terms:
0.09467455622 + -0.6153846154v + v2 = 0.1538461538 + 0.09467455622

Combine like terms: 0.1538461538 + 0.09467455622 = 0.24852071002
0.09467455622 + -0.6153846154v + v2 = 0.24852071002

Factor a perfect square on the left side:
(v + -0.3076923077)(v + -0.3076923077) = 0.24852071002

Calculate the square root of the right side: 0.498518515

Break this problem into two subproblems by setting 
(v + -0.3076923077) equal to 0.498518515 and -0.498518515.

Subproblem 1

v + -0.3076923077 = 0.498518515 Simplifying v + -0.3076923077 = 0.498518515 Reorder the terms: -0.3076923077 + v = 0.498518515 Solving -0.3076923077 + v = 0.498518515 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.3076923077' to each side of the equation. -0.3076923077 + 0.3076923077 + v = 0.498518515 + 0.3076923077 Combine like terms: -0.3076923077 + 0.3076923077 = 0.0000000000 0.0000000000 + v = 0.498518515 + 0.3076923077 v = 0.498518515 + 0.3076923077 Combine like terms: 0.498518515 + 0.3076923077 = 0.8062108227 v = 0.8062108227 Simplifying v = 0.8062108227

Subproblem 2

v + -0.3076923077 = -0.498518515 Simplifying v + -0.3076923077 = -0.498518515 Reorder the terms: -0.3076923077 + v = -0.498518515 Solving -0.3076923077 + v = -0.498518515 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '0.3076923077' to each side of the equation. -0.3076923077 + 0.3076923077 + v = -0.498518515 + 0.3076923077 Combine like terms: -0.3076923077 + 0.3076923077 = 0.0000000000 0.0000000000 + v = -0.498518515 + 0.3076923077 v = -0.498518515 + 0.3076923077 Combine like terms: -0.498518515 + 0.3076923077 = -0.1908262073 v = -0.1908262073 Simplifying v = -0.1908262073

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.8062108227, -0.1908262073}

See similar equations:

| 21x+63=-x+3 | | 28-7=14 | | sec^2x-4=0 | | -3x+3(-6)=-6 | | 28-7= | | 7-5t=12t | | 64c^5+160c^4+100c^3=0 | | -6=6x+12 | | -2a^5= | | 3/4n=-13/4n-18 | | 11y=4-3x | | 18+3/8t=-18 | | 8-4(q+2)=-7 | | 4x-5+x=6x-8 | | -2=n-7 | | y-(-9)=-23 | | 4n^8-4n^6=0 | | -5(0)+4y=-20 | | 2(4a+2)=12a | | 2/3a-5+8/9a=-1a | | 2(2a+.5)=3(a-.6) | | 2x-234x+675x=4568 | | -15g^7h^-2/25g^4h^6 | | 2x-234x+675x= | | 20x^2-3x-2= | | (4w-6)(3-w)=0 | | 6y-7=47 | | 8h=96 | | 0.5(x-2)+12=0.5x+11 | | 7y-11=10+8y | | 3.2(t-7)=-6.4(t-4) | | -36n^9-48n^8-16n^7=0 |

Equations solver categories