3x^2+12x+4-49=0

Simple and best practice solution for 3x^2+12x+4-49=0 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 3x^2+12x+4-49=0 equation:


Simplifying
3x2 + 12x + 4 + -49 = 0

Reorder the terms:
4 + -49 + 12x + 3x2 = 0

Combine like terms: 4 + -49 = -45
-45 + 12x + 3x2 = 0

Solving
-45 + 12x + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + 4x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-15 + 4x + x2)' equal to zero and attempt to solve: Simplifying -15 + 4x + x2 = 0 Solving -15 + 4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '15' to each side of the equation. -15 + 4x + 15 + x2 = 0 + 15 Reorder the terms: -15 + 15 + 4x + x2 = 0 + 15 Combine like terms: -15 + 15 = 0 0 + 4x + x2 = 0 + 15 4x + x2 = 0 + 15 Combine like terms: 0 + 15 = 15 4x + x2 = 15 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = 15 + 4 Reorder the terms: 4 + 4x + x2 = 15 + 4 Combine like terms: 15 + 4 = 19 4 + 4x + x2 = 19 Factor a perfect square on the left side: (x + 2)(x + 2) = 19 Calculate the square root of the right side: 4.358898944 Break this problem into two subproblems by setting (x + 2) equal to 4.358898944 and -4.358898944.

Subproblem 1

x + 2 = 4.358898944 Simplifying x + 2 = 4.358898944 Reorder the terms: 2 + x = 4.358898944 Solving 2 + x = 4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 4.358898944 + -2 Combine like terms: 2 + -2 = 0 0 + x = 4.358898944 + -2 x = 4.358898944 + -2 Combine like terms: 4.358898944 + -2 = 2.358898944 x = 2.358898944 Simplifying x = 2.358898944

Subproblem 2

x + 2 = -4.358898944 Simplifying x + 2 = -4.358898944 Reorder the terms: 2 + x = -4.358898944 Solving 2 + x = -4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -4.358898944 + -2 Combine like terms: 2 + -2 = 0 0 + x = -4.358898944 + -2 x = -4.358898944 + -2 Combine like terms: -4.358898944 + -2 = -6.358898944 x = -6.358898944 Simplifying x = -6.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.358898944, -6.358898944}

Solution

x = {2.358898944, -6.358898944}

See similar equations:

| 6x=4.2(x-3) | | 2x+3=10+5 | | -6(2b+4)+(13b-1)=0 | | -40+2r=8-8(r+6) | | -(x-12)+3(x+3)=x+3 | | 1.2k+2.3=0.5k+7.4 | | P=2a+2b | | 28=7h | | 3(x+4)+7x+2= | | -22=3x-7 | | 3[2m-(7-3m)]=m-21 | | 2.7q-5.8-2.3q=-0.6q-1.3 | | 5x^2-7xy-12y^2=0 | | 12x-6=-6x-14 | | -47k-7=7(7k+3) | | 49x^2+70x+24=0 | | 2x^2+4=72 | | 36+6m=89(m+6) | | -x^2-3x-2=0 | | -7y+7=8y+5 | | x+x-x+7=4x-x+2 | | 13*13= | | -(x-12)+6(x+2)=6(x+11) | | 5y=180 | | 6r^2-7r-20=0 | | 0.666666667x^2-4=12 | | z-18=-18 | | 17+w=42 | | 4r^2+4r+1=0 | | ac+xc+aw^2+xw^2= | | 2x-3(x+1)=4x-38 | | 3[2m-(-7-3m)]=m-21 |

Equations solver categories