(4x^2-3x+7)+(2x^2+6x-8)=

Simple and best practice solution for (4x^2-3x+7)+(2x^2+6x-8)= 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 (4x^2-3x+7)+(2x^2+6x-8)= equation:


Simplifying
(4x2 + -3x + 7) + (2x2 + 6x + -8) = 0

Reorder the terms:
(7 + -3x + 4x2) + (2x2 + 6x + -8) = 0

Remove parenthesis around (7 + -3x + 4x2)
7 + -3x + 4x2 + (2x2 + 6x + -8) = 0

Reorder the terms:
7 + -3x + 4x2 + (-8 + 6x + 2x2) = 0

Remove parenthesis around (-8 + 6x + 2x2)
7 + -3x + 4x2 + -8 + 6x + 2x2 = 0

Reorder the terms:
7 + -8 + -3x + 6x + 4x2 + 2x2 = 0

Combine like terms: 7 + -8 = -1
-1 + -3x + 6x + 4x2 + 2x2 = 0

Combine like terms: -3x + 6x = 3x
-1 + 3x + 4x2 + 2x2 = 0

Combine like terms: 4x2 + 2x2 = 6x2
-1 + 3x + 6x2 = 0

Solving
-1 + 3x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-0.1666666667 + 0.5x + x2 = 0

Move the constant term to the right:

Add '0.1666666667' to each side of the equation.
-0.1666666667 + 0.5x + 0.1666666667 + x2 = 0 + 0.1666666667

Reorder the terms:
-0.1666666667 + 0.1666666667 + 0.5x + x2 = 0 + 0.1666666667

Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000
0.0000000000 + 0.5x + x2 = 0 + 0.1666666667
0.5x + x2 = 0 + 0.1666666667

Combine like terms: 0 + 0.1666666667 = 0.1666666667
0.5x + x2 = 0.1666666667

The x term is 0.5x.  Take half its coefficient (0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
0.5x + 0.0625 + x2 = 0.1666666667 + 0.0625

Reorder the terms:
0.0625 + 0.5x + x2 = 0.1666666667 + 0.0625

Combine like terms: 0.1666666667 + 0.0625 = 0.2291666667
0.0625 + 0.5x + x2 = 0.2291666667

Factor a perfect square on the left side:
(x + 0.25)(x + 0.25) = 0.2291666667

Calculate the square root of the right side: 0.478713554

Break this problem into two subproblems by setting 
(x + 0.25) equal to 0.478713554 and -0.478713554.

Subproblem 1

x + 0.25 = 0.478713554 Simplifying x + 0.25 = 0.478713554 Reorder the terms: 0.25 + x = 0.478713554 Solving 0.25 + x = 0.478713554 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = 0.478713554 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = 0.478713554 + -0.25 x = 0.478713554 + -0.25 Combine like terms: 0.478713554 + -0.25 = 0.228713554 x = 0.228713554 Simplifying x = 0.228713554

Subproblem 2

x + 0.25 = -0.478713554 Simplifying x + 0.25 = -0.478713554 Reorder the terms: 0.25 + x = -0.478713554 Solving 0.25 + x = -0.478713554 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.25' to each side of the equation. 0.25 + -0.25 + x = -0.478713554 + -0.25 Combine like terms: 0.25 + -0.25 = 0.00 0.00 + x = -0.478713554 + -0.25 x = -0.478713554 + -0.25 Combine like terms: -0.478713554 + -0.25 = -0.728713554 x = -0.728713554 Simplifying x = -0.728713554

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.228713554, -0.728713554}

See similar equations:

| 180=1x+10+3x+18 | | (2+3)(5+3x)=50-2.5(x+2) | | n+(-30)=-46 | | -5x+8y=3 | | 10(5m+4)=2(3m-10) | | (3p-1)(2p+1)= | | (5-w)(5w+2)=0 | | 19w^2+76=0 | | 10x-10=6x+1 | | 6x+22=9x-2 | | 6y+3-8y-1=0 | | 6v^2-12=0 | | -8(7y)= | | 15c=13c+12 | | -9(n-t)= | | x+2(x-5)=14 | | 2x-6=-14+3x | | -3(4a+5)+4= | | 4k-(2k-4)=0 | | 2(10x-23)=2-1(x+6) | | 2x=20-2 | | p-23=56 | | W=6+24 | | -(r-4-3p)= | | 0.80x+5.00=14.60 | | 7x+6-3x=-8x-5+x | | 9(7y)= | | 5(x-2)+10x=-6 | | 4+3x-1=2x-2 | | 4(a-11)-7(2a+1)=2.28 | | 2log(x+1)-log(4)=log(2x-1) | | 7y=-24 |

Equations solver categories