9x^2+54x=18

Simple and best practice solution for 9x^2+54x=18 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 9x^2+54x=18 equation:


Simplifying
9x2 + 54x = 18

Reorder the terms:
54x + 9x2 = 18

Solving
54x + 9x2 = 18

Solving for variable 'x'.

Reorder the terms:
-18 + 54x + 9x2 = 18 + -18

Combine like terms: 18 + -18 = 0
-18 + 54x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), '9'.
9(-2 + 6x + x2) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(-2 + 6x + x2)' equal to zero and attempt to solve: Simplifying -2 + 6x + x2 = 0 Solving -2 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + 6x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + 6x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 6x + x2 = 0 + 2 6x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 6x + x2 = 2 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 = 2 + 9 Reorder the terms: 9 + 6x + x2 = 2 + 9 Combine like terms: 2 + 9 = 11 9 + 6x + x2 = 11 Factor a perfect square on the left side: (x + 3)(x + 3) = 11 Calculate the square root of the right side: 3.31662479 Break this problem into two subproblems by setting (x + 3) equal to 3.31662479 and -3.31662479.

Subproblem 1

x + 3 = 3.31662479 Simplifying x + 3 = 3.31662479 Reorder the terms: 3 + x = 3.31662479 Solving 3 + x = 3.31662479 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 = 3.31662479 + -3 Combine like terms: 3 + -3 = 0 0 + x = 3.31662479 + -3 x = 3.31662479 + -3 Combine like terms: 3.31662479 + -3 = 0.31662479 x = 0.31662479 Simplifying x = 0.31662479

Subproblem 2

x + 3 = -3.31662479 Simplifying x + 3 = -3.31662479 Reorder the terms: 3 + x = -3.31662479 Solving 3 + x = -3.31662479 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 = -3.31662479 + -3 Combine like terms: 3 + -3 = 0 0 + x = -3.31662479 + -3 x = -3.31662479 + -3 Combine like terms: -3.31662479 + -3 = -6.31662479 x = -6.31662479 Simplifying x = -6.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.31662479, -6.31662479}

Solution

x = {0.31662479, -6.31662479}

See similar equations:

| 6n-3(n+6)=9 | | 2(4*5z)-(4+5+z)= | | 0.5(x-6)+1=2(x-10)-3 | | 15=-3(2v-1) | | t-3=2 | | 2(4*5*65)-(4+5+65)= | | 9(x+4)=1+2x | | (2x+3y)(x-2y)= | | -2(d-3)=9 | | 15x^2+x-6=0 | | 2(xyz)-(x+y+z)= | | (3+5i)+(2-7i)=0 | | -18-w+10w=27 | | (8x-4)(8x+4)= | | 15x^2+18x+11=0 | | 9y=-3x+12 | | 2x^2-10+3x=x*x-2*2+1 | | -2x+5y=59 | | (2s-3)(2s+3)= | | 2x+1-3x+5=3x(x+10) | | x^2+5x-8=4x+4 | | x+6y=47 | | 8a-3(2a+5)=25 | | (5x+7)(5x-7)= | | 2x*2x+3*3=1 | | -2(3x-4)-(2x+6)=-38 | | 5w+3w-9=55 | | (3x+2)(3x-2)= | | 29=1+7v | | 5y^3-y^3= | | 3b+2=14 | | 6(2x+8)+4(-3x-6)= |

Equations solver categories