(7x^2-3x-43)+(6x^2+6x)=

Simple and best practice solution for (7x^2-3x-43)+(6x^2+6x)= 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 (7x^2-3x-43)+(6x^2+6x)= equation:


Simplifying
(7x2 + -3x + -43) + (6x2 + 6x) = 0

Reorder the terms:
(-43 + -3x + 7x2) + (6x2 + 6x) = 0

Remove parenthesis around (-43 + -3x + 7x2)
-43 + -3x + 7x2 + (6x2 + 6x) = 0

Reorder the terms:
-43 + -3x + 7x2 + (6x + 6x2) = 0

Remove parenthesis around (6x + 6x2)
-43 + -3x + 7x2 + 6x + 6x2 = 0

Reorder the terms:
-43 + -3x + 6x + 7x2 + 6x2 = 0

Combine like terms: -3x + 6x = 3x
-43 + 3x + 7x2 + 6x2 = 0

Combine like terms: 7x2 + 6x2 = 13x2
-43 + 3x + 13x2 = 0

Solving
-43 + 3x + 13x2 = 0

Solving for variable 'x'.

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

Divide each side by '13'.
-3.307692308 + 0.2307692308x + x2 = 0

Move the constant term to the right:

Add '3.307692308' to each side of the equation.
-3.307692308 + 0.2307692308x + 3.307692308 + x2 = 0 + 3.307692308

Reorder the terms:
-3.307692308 + 3.307692308 + 0.2307692308x + x2 = 0 + 3.307692308

Combine like terms: -3.307692308 + 3.307692308 = 0.000000000
0.000000000 + 0.2307692308x + x2 = 0 + 3.307692308
0.2307692308x + x2 = 0 + 3.307692308

Combine like terms: 0 + 3.307692308 = 3.307692308
0.2307692308x + x2 = 3.307692308

The x term is 0.2307692308x.  Take half its coefficient (0.1153846154).
Square it (0.01331360947) and add it to both sides.

Add '0.01331360947' to each side of the equation.
0.2307692308x + 0.01331360947 + x2 = 3.307692308 + 0.01331360947

Reorder the terms:
0.01331360947 + 0.2307692308x + x2 = 3.307692308 + 0.01331360947

Combine like terms: 3.307692308 + 0.01331360947 = 3.32100591747
0.01331360947 + 0.2307692308x + x2 = 3.32100591747

Factor a perfect square on the left side:
(x + 0.1153846154)(x + 0.1153846154) = 3.32100591747

Calculate the square root of the right side: 1.822362729

Break this problem into two subproblems by setting 
(x + 0.1153846154) equal to 1.822362729 and -1.822362729.

Subproblem 1

x + 0.1153846154 = 1.822362729 Simplifying x + 0.1153846154 = 1.822362729 Reorder the terms: 0.1153846154 + x = 1.822362729 Solving 0.1153846154 + x = 1.822362729 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1153846154' to each side of the equation. 0.1153846154 + -0.1153846154 + x = 1.822362729 + -0.1153846154 Combine like terms: 0.1153846154 + -0.1153846154 = 0.0000000000 0.0000000000 + x = 1.822362729 + -0.1153846154 x = 1.822362729 + -0.1153846154 Combine like terms: 1.822362729 + -0.1153846154 = 1.7069781136 x = 1.7069781136 Simplifying x = 1.7069781136

Subproblem 2

x + 0.1153846154 = -1.822362729 Simplifying x + 0.1153846154 = -1.822362729 Reorder the terms: 0.1153846154 + x = -1.822362729 Solving 0.1153846154 + x = -1.822362729 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.1153846154' to each side of the equation. 0.1153846154 + -0.1153846154 + x = -1.822362729 + -0.1153846154 Combine like terms: 0.1153846154 + -0.1153846154 = 0.0000000000 0.0000000000 + x = -1.822362729 + -0.1153846154 x = -1.822362729 + -0.1153846154 Combine like terms: -1.822362729 + -0.1153846154 = -1.9377473444 x = -1.9377473444 Simplifying x = -1.9377473444

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.7069781136, -1.9377473444}

See similar equations:

| 8x-40=15x+2 | | 11u=4 | | y=x+12x+11 | | y^2dx+(3xy+y^2-2)dy=0 | | 35s+71=21s+43 | | 10(x+3)-(-9x-4)=2-5+3 | | 6x+7=-67 | | 7a^2+17a+9=0 | | v=1/3x10x8 | | 16=-4(x-5) | | 5(x-3)=9x+7 | | 9-2y=2 | | -18=-6(k+17) | | C-2.53=6.8 | | sa+b=s+r | | 4.8/-0.8y | | 6x/(3x^2) | | 6=4r+12 | | 4.8/-0.8 | | 6x/3x^2 | | 14a+7b=392 | | y=-3+0.4x^2 | | 5(10)+31= | | 8m+12=3m+6 | | -3/4*-8/3 | | 5x+5=x+46 | | 9x+4=8x+24 | | 16x^3-8x^2=0 | | 4x+5(2x-5)=-179 | | -2x-4(-2x-9)=90 | | c=-34d | | 3x+2(7x-4)=94 |

Equations solver categories