2x^2+4x=36

Simple and best practice solution for 2x^2+4x=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+4x=36 equation:


Simplifying
2x2 + 4x = 36

Reorder the terms:
4x + 2x2 = 36

Solving
4x + 2x2 = 36

Solving for variable 'x'.

Reorder the terms:
-36 + 4x + 2x2 = 36 + -36

Combine like terms: 36 + -36 = 0
-36 + 4x + 2x2 = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(-18 + 2x + x2)' equal to zero and attempt to solve: Simplifying -18 + 2x + x2 = 0 Solving -18 + 2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '18' to each side of the equation. -18 + 2x + 18 + x2 = 0 + 18 Reorder the terms: -18 + 18 + 2x + x2 = 0 + 18 Combine like terms: -18 + 18 = 0 0 + 2x + x2 = 0 + 18 2x + x2 = 0 + 18 Combine like terms: 0 + 18 = 18 2x + x2 = 18 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 18 + 1 Reorder the terms: 1 + 2x + x2 = 18 + 1 Combine like terms: 18 + 1 = 19 1 + 2x + x2 = 19 Factor a perfect square on the left side: (x + 1)(x + 1) = 19 Calculate the square root of the right side: 4.358898944 Break this problem into two subproblems by setting (x + 1) equal to 4.358898944 and -4.358898944.

Subproblem 1

x + 1 = 4.358898944 Simplifying x + 1 = 4.358898944 Reorder the terms: 1 + x = 4.358898944 Solving 1 + x = 4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 4.358898944 + -1 Combine like terms: 1 + -1 = 0 0 + x = 4.358898944 + -1 x = 4.358898944 + -1 Combine like terms: 4.358898944 + -1 = 3.358898944 x = 3.358898944 Simplifying x = 3.358898944

Subproblem 2

x + 1 = -4.358898944 Simplifying x + 1 = -4.358898944 Reorder the terms: 1 + x = -4.358898944 Solving 1 + x = -4.358898944 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -4.358898944 + -1 Combine like terms: 1 + -1 = 0 0 + x = -4.358898944 + -1 x = -4.358898944 + -1 Combine like terms: -4.358898944 + -1 = -5.358898944 x = -5.358898944 Simplifying x = -5.358898944

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.358898944, -5.358898944}

Solution

x = {3.358898944, -5.358898944}

See similar equations:

| 3(2y+1)-y=18 | | (-7x+9)(9x-2)=0 | | (9x-2)(8x+7)=0 | | (4x+3)(8-5x)=0 | | 29x+40xy+28y=0 | | 104x+41xy+48y=0 | | 6X+3X+X=198 | | (2-2ln(x))/x=0 | | 135-83= | | x^2+18x-5=00 | | x^2+18x-5= | | x^3+x^2y-300=0 | | 35x^2+18x-5=03 | | (3/10)(5/10) | | 3/10*5/10 | | A=65a-a(2+5) | | 35x^2+18x+8=0 | | A=65a-a(2+25/5) | | F=5(f-3)+f | | 68x1/2+50X1/2-12= | | 68x1/2+50X1/2-12 | | 4x-8/8x | | 10=2x-28 | | (351x0,001)+2m(7-4m)+(7x5-1)/2 | | M=(351x0,001)+2m(7-4m)+(7x5-1)/2 | | Cos(2x-pi/6)=sin2x | | x-vi*ii+ix/ii= | | 48g^2-22gh-15h^2= | | x=17-3 | | 7n-3=2n+2 | | 16a=14 | | 2x-7=-4x+11 |

Equations solver categories