4x^2+x+-12=3x^2-5x

Simple and best practice solution for 4x^2+x+-12=3x^2-5x 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+x+-12=3x^2-5x equation:


Simplifying
4x2 + x + -12 = 3x2 + -5x

Reorder the terms:
-12 + x + 4x2 = 3x2 + -5x

Reorder the terms:
-12 + x + 4x2 = -5x + 3x2

Solving
-12 + x + 4x2 = -5x + 3x2

Solving for variable 'x'.

Reorder the terms:
-12 + x + 5x + 4x2 + -3x2 = -5x + 3x2 + 5x + -3x2

Combine like terms: x + 5x = 6x
-12 + 6x + 4x2 + -3x2 = -5x + 3x2 + 5x + -3x2

Combine like terms: 4x2 + -3x2 = 1x2
-12 + 6x + 1x2 = -5x + 3x2 + 5x + -3x2

Reorder the terms:
-12 + 6x + 1x2 = -5x + 5x + 3x2 + -3x2

Combine like terms: -5x + 5x = 0
-12 + 6x + 1x2 = 0 + 3x2 + -3x2
-12 + 6x + 1x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
-12 + 6x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '12' to each side of the equation.
-12 + 6x + 12 + x2 = 0 + 12

Reorder the terms:
-12 + 12 + 6x + x2 = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 6x + x2 = 0 + 12
6x + x2 = 0 + 12

Combine like terms: 0 + 12 = 12
6x + x2 = 12

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 12 + 9

Reorder the terms:
9 + 6x + x2 = 12 + 9

Combine like terms: 12 + 9 = 21
9 + 6x + x2 = 21

Factor a perfect square on the left side:
(x + 3)(x + 3) = 21

Calculate the square root of the right side: 4.582575695

Break this problem into two subproblems by setting 
(x + 3) equal to 4.582575695 and -4.582575695.

Subproblem 1

x + 3 = 4.582575695 Simplifying x + 3 = 4.582575695 Reorder the terms: 3 + x = 4.582575695 Solving 3 + x = 4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 4.582575695 + -3 Combine like terms: 3 + -3 = 0 0 + x = 4.582575695 + -3 x = 4.582575695 + -3 Combine like terms: 4.582575695 + -3 = 1.582575695 x = 1.582575695 Simplifying x = 1.582575695

Subproblem 2

x + 3 = -4.582575695 Simplifying x + 3 = -4.582575695 Reorder the terms: 3 + x = -4.582575695 Solving 3 + x = -4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -4.582575695 + -3 Combine like terms: 3 + -3 = 0 0 + x = -4.582575695 + -3 x = -4.582575695 + -3 Combine like terms: -4.582575695 + -3 = -7.582575695 x = -7.582575695 Simplifying x = -7.582575695

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.582575695, -7.582575695}

See similar equations:

| 3250=2(m-500)+1500 | | f(x)=3x^4+8x^2 | | 14m-7=7m-49 | | 5y=30-3x | | 10x+2+7x-10=180 | | 2xm+xm=18 | | 4w-7=10 | | 5X-10+4=2X+11-5 | | 8m-4(1+6m)=-4-5m | | -2u=12 | | 64=80-32x | | 25+110x=2200-150x | | -5x-2+7-14=-8x+6x | | 32=80-32x | | 10=-4(x-5)-5(2-4x) | | -6+2c=3c(6+5) | | 9x=-24 | | 2w-3l=174 | | 9-v=10 | | 8(w-4)=4w-36 | | -4(-6b+2)=-8-4b | | -3n+7=-52 | | 29+18k=11k+-11y | | 7=-8x/3-(10x/3+1) | | f(x)=cos^2(3x^4+1) | | 2=112+96x-16x^2 | | (X+10)+2x=x+(25+x) | | 5y-29=-3(y-9) | | 38(31-6.5x)=14(6x-9)+46.2 | | 0.79x+16=1.19x | | 4(b+8)=3(b-6) | | 3.8q-1.1-3.7q=-0.9q-5.8 |

Equations solver categories