2x^2=-18x+36

Simple and best practice solution for 2x^2=-18x+36 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 2x^2=-18x+36 equation:


Simplifying
2x2 = -18x + 36

Reorder the terms:
2x2 = 36 + -18x

Solving
2x2 = 36 + -18x

Solving for variable 'x'.

Reorder the terms:
-36 + 18x + 2x2 = 36 + -18x + -36 + 18x

Reorder the terms:
-36 + 18x + 2x2 = 36 + -36 + -18x + 18x

Combine like terms: 36 + -36 = 0
-36 + 18x + 2x2 = 0 + -18x + 18x
-36 + 18x + 2x2 = -18x + 18x

Combine like terms: -18x + 18x = 0
-36 + 18x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-18 + 9x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-18 + 9x + x2)' equal to zero and attempt to solve: Simplifying -18 + 9x + x2 = 0 Solving -18 + 9x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '18' to each side of the equation. -18 + 9x + 18 + x2 = 0 + 18 Reorder the terms: -18 + 18 + 9x + x2 = 0 + 18 Combine like terms: -18 + 18 = 0 0 + 9x + x2 = 0 + 18 9x + x2 = 0 + 18 Combine like terms: 0 + 18 = 18 9x + x2 = 18 The x term is 9x. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9x + 20.25 + x2 = 18 + 20.25 Reorder the terms: 20.25 + 9x + x2 = 18 + 20.25 Combine like terms: 18 + 20.25 = 38.25 20.25 + 9x + x2 = 38.25 Factor a perfect square on the left side: (x + 4.5)(x + 4.5) = 38.25 Calculate the square root of the right side: 6.184658438 Break this problem into two subproblems by setting (x + 4.5) equal to 6.184658438 and -6.184658438.

Subproblem 1

x + 4.5 = 6.184658438 Simplifying x + 4.5 = 6.184658438 Reorder the terms: 4.5 + x = 6.184658438 Solving 4.5 + x = 6.184658438 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = 6.184658438 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = 6.184658438 + -4.5 x = 6.184658438 + -4.5 Combine like terms: 6.184658438 + -4.5 = 1.684658438 x = 1.684658438 Simplifying x = 1.684658438

Subproblem 2

x + 4.5 = -6.184658438 Simplifying x + 4.5 = -6.184658438 Reorder the terms: 4.5 + x = -6.184658438 Solving 4.5 + x = -6.184658438 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + x = -6.184658438 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + x = -6.184658438 + -4.5 x = -6.184658438 + -4.5 Combine like terms: -6.184658438 + -4.5 = -10.684658438 x = -10.684658438 Simplifying x = -10.684658438

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.684658438, -10.684658438}

Solution

x = {1.684658438, -10.684658438}

See similar equations:

| (-4)(1)-4= | | -9=26-5y | | -115-7x=125+9x | | 6+1k=8 | | 125=2.73x+3.45 | | 5g+2(2-g)+5(g+1)= | | 14=3x+40 | | 50+65x=505 | | Y-2=x-y+2 | | 13x^2+52x=0 | | 10x-4x-6-8x=7 | | s-5=25.69 | | 97=2x+3(-3x+9) | | 11(y+1)=33 | | 7373+28484= | | 3x-10=5x-8 | | 38-11x=-7x-54 | | 6t-t-6=4t-6 | | -3u^3-16u-16=0 | | x^2+sqrt(7x)-1=0 | | 6t-t-6t=4t-6 | | 790x+10y-1000=0 | | 4c-2=3c | | 13=2x^2-5x-7 | | 4(x+7)=48whatisx | | 3x^2y+12xy-57y= | | mgh=mv | | x^2+5x-170=0 | | 25+3x-5+2x=160 | | 3b-4(2b+5)=3b-6+10 | | 4x^3y-8x^2y^2-96xy^3= | | 4i(6i)=x |

Equations solver categories