-6x^2+4+7x^2-8x=

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


Simplifying
-6x2 + 4 + 7x2 + -8x = 0

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

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

Solving
4 + -8x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -8x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -8x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -8x + x2 = 0 + -4
-8x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-8x + x2 = -4

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -4 + 16

Reorder the terms:
16 + -8x + x2 = -4 + 16

Combine like terms: -4 + 16 = 12
16 + -8x + x2 = 12

Factor a perfect square on the left side:
(x + -4)(x + -4) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(x + -4) equal to 3.464101615 and -3.464101615.

Subproblem 1

x + -4 = 3.464101615 Simplifying x + -4 = 3.464101615 Reorder the terms: -4 + x = 3.464101615 Solving -4 + x = 3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 3.464101615 + 4 Combine like terms: -4 + 4 = 0 0 + x = 3.464101615 + 4 x = 3.464101615 + 4 Combine like terms: 3.464101615 + 4 = 7.464101615 x = 7.464101615 Simplifying x = 7.464101615

Subproblem 2

x + -4 = -3.464101615 Simplifying x + -4 = -3.464101615 Reorder the terms: -4 + x = -3.464101615 Solving -4 + x = -3.464101615 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -3.464101615 + 4 Combine like terms: -4 + 4 = 0 0 + x = -3.464101615 + 4 x = -3.464101615 + 4 Combine like terms: -3.464101615 + 4 = 0.535898385 x = 0.535898385 Simplifying x = 0.535898385

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.464101615, 0.535898385}

See similar equations:

| -4(-2w+y)+6(2y-4w)= | | -2(x-4)+8x=9x-8 | | 0.625y-6=-1 | | 0.6y-6=-1 | | -3(4v-1)+8v=9+2(4v-5) | | 2.1-9= | | 2(x+8)=4-x | | -4.5+(-4.7)= | | -7(-3v+2)-4v=3(v-1)-5 | | 12x^2-113x+266=0 | | -7.19x=5 | | 3+2x=53 | | 6.8+(-3.2)= | | 5=9x-5 | | .25y-2=-1 | | x+(x+13554)=120436 | | -8.2+9.1= | | 2(x-8)=2x+10 | | 26x+12=5(4x+1)+6x+7 | | 4x+12y+-10z=-18 | | -5(2x-6)+1=-10x+31 | | 21=w(w-4) | | x+(x+49365)=295525 | | 2d+5y=9 | | 2(u-3)=4u+3-2(-8u-3) | | 300=(30-2x)(20-2x) | | 8x-(5x+8)=18 | | 3000=(30-2x)(20-2x) | | 3(5x-1)=15x-3 | | 25m^4-16n^2= | | -[5z-(15z+7)]=7+(9z+6) | | 15.625=b^7 |

Equations solver categories