3x^2=9-24x

Simple and best practice solution for 3x^2=9-24x 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=9-24x equation:


Simplifying
3x2 = 9 + -24x

Solving
3x2 = 9 + -24x

Solving for variable 'x'.

Reorder the terms:
-9 + 24x + 3x2 = 9 + -24x + -9 + 24x

Reorder the terms:
-9 + 24x + 3x2 = 9 + -9 + -24x + 24x

Combine like terms: 9 + -9 = 0
-9 + 24x + 3x2 = 0 + -24x + 24x
-9 + 24x + 3x2 = -24x + 24x

Combine like terms: -24x + 24x = 0
-9 + 24x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-3 + 8x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-3 + 8x + x2)' equal to zero and attempt to solve: Simplifying -3 + 8x + x2 = 0 Solving -3 + 8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '3' to each side of the equation. -3 + 8x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + 8x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 8x + x2 = 0 + 3 8x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 8x + x2 = 3 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 = 3 + 16 Reorder the terms: 16 + 8x + x2 = 3 + 16 Combine like terms: 3 + 16 = 19 16 + 8x + x2 = 19 Factor a perfect square on the left side: (x + 4)(x + 4) = 19 Calculate the square root of the right side: 4.358898944 Break this problem into two subproblems by setting (x + 4) equal to 4.358898944 and -4.358898944.

Subproblem 1

x + 4 = 4.358898944 Simplifying x + 4 = 4.358898944 Reorder the terms: 4 + x = 4.358898944 Solving 4 + x = 4.358898944 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 = 4.358898944 + -4 Combine like terms: 4 + -4 = 0 0 + x = 4.358898944 + -4 x = 4.358898944 + -4 Combine like terms: 4.358898944 + -4 = 0.358898944 x = 0.358898944 Simplifying x = 0.358898944

Subproblem 2

x + 4 = -4.358898944 Simplifying x + 4 = -4.358898944 Reorder the terms: 4 + x = -4.358898944 Solving 4 + x = -4.358898944 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 = -4.358898944 + -4 Combine like terms: 4 + -4 = 0 0 + x = -4.358898944 + -4 x = -4.358898944 + -4 Combine like terms: -4.358898944 + -4 = -8.358898944 x = -8.358898944 Simplifying x = -8.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.358898944, -8.358898944}

Solution

x = {0.358898944, -8.358898944}

See similar equations:

| -2x+6y=8 | | x+4v=w | | 9m+14m=-5 | | x^2+10+22=0 | | 6h+1-9h+4= | | 4/3(3)= | | x^2+0x-36=0 | | -2/5(6)+14.4= | | 2M+16=5M-20 | | 5/2(6)+27= | | -2/5(6)= | | 3b^2+15b+18=0 | | -5c=5c | | x/6+x/4=5 | | 3(2w+1)=5(1w-2) | | 560*11.2= | | 26=y-87 | | -3p-15+-3p=-27 | | 5y+9y=126 | | 70(11.2)+630= | | x-6y=5v | | 36x^2-96+64= | | x=3(w-12)+30 | | 11-10x=36-17x | | 2v^2+6v-8=0 | | 13-7x=53-14x | | 560/50= | | 2x^2+6v-8=0 | | 630-70= | | k(k+1)=0 | | 3y^2+6y=-5 | | P^2+16=8p |

Equations solver categories