(2x+4)(2x-9)=180

Simple and best practice solution for (2x+4)(2x-9)=180 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+4)(2x-9)=180 equation:


Simplifying
(2x + 4)(2x + -9) = 180

Reorder the terms:
(4 + 2x)(2x + -9) = 180

Reorder the terms:
(4 + 2x)(-9 + 2x) = 180

Multiply (4 + 2x) * (-9 + 2x)
(4(-9 + 2x) + 2x * (-9 + 2x)) = 180
((-9 * 4 + 2x * 4) + 2x * (-9 + 2x)) = 180
((-36 + 8x) + 2x * (-9 + 2x)) = 180
(-36 + 8x + (-9 * 2x + 2x * 2x)) = 180
(-36 + 8x + (-18x + 4x2)) = 180

Combine like terms: 8x + -18x = -10x
(-36 + -10x + 4x2) = 180

Solving
-36 + -10x + 4x2 = 180

Solving for variable 'x'.

Reorder the terms:
-36 + -180 + -10x + 4x2 = 180 + -180

Combine like terms: -36 + -180 = -216
-216 + -10x + 4x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-216 + -10x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-108 + -5x + 2x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-108 + -5x + 2x2)' equal to zero and attempt to solve: Simplifying -108 + -5x + 2x2 = 0 Solving -108 + -5x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -54 + -2.5x + x2 = 0 Move the constant term to the right: Add '54' to each side of the equation. -54 + -2.5x + 54 + x2 = 0 + 54 Reorder the terms: -54 + 54 + -2.5x + x2 = 0 + 54 Combine like terms: -54 + 54 = 0 0 + -2.5x + x2 = 0 + 54 -2.5x + x2 = 0 + 54 Combine like terms: 0 + 54 = 54 -2.5x + x2 = 54 The x term is -2.5x. Take half its coefficient (-1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. -2.5x + 1.5625 + x2 = 54 + 1.5625 Reorder the terms: 1.5625 + -2.5x + x2 = 54 + 1.5625 Combine like terms: 54 + 1.5625 = 55.5625 1.5625 + -2.5x + x2 = 55.5625 Factor a perfect square on the left side: (x + -1.25)(x + -1.25) = 55.5625 Calculate the square root of the right side: 7.454025758 Break this problem into two subproblems by setting (x + -1.25) equal to 7.454025758 and -7.454025758.

Subproblem 1

x + -1.25 = 7.454025758 Simplifying x + -1.25 = 7.454025758 Reorder the terms: -1.25 + x = 7.454025758 Solving -1.25 + x = 7.454025758 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = 7.454025758 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = 7.454025758 + 1.25 x = 7.454025758 + 1.25 Combine like terms: 7.454025758 + 1.25 = 8.704025758 x = 8.704025758 Simplifying x = 8.704025758

Subproblem 2

x + -1.25 = -7.454025758 Simplifying x + -1.25 = -7.454025758 Reorder the terms: -1.25 + x = -7.454025758 Solving -1.25 + x = -7.454025758 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + x = -7.454025758 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + x = -7.454025758 + 1.25 x = -7.454025758 + 1.25 Combine like terms: -7.454025758 + 1.25 = -6.204025758 x = -6.204025758 Simplifying x = -6.204025758

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.704025758, -6.204025758}

Solution

x = {8.704025758, -6.204025758}

See similar equations:

| x^3-12x^2+36x-4=0 | | 9x-4(x+8)=3(2x-7) | | 0.10x+1.50=7.50 | | 4-3x=37 | | 2x+4=2x-9 | | 2m-9-8m=-27 | | 2x^4+16x^3+32x^2=0 | | 2x+4-2x-9=180 | | 4x+6=5x-9 | | 0.10(27)+1.50=c | | .010(27)+1.50=x | | 9y=3(1)+18 | | 8=7+12x | | 6K-K= | | 2x+4+2x-9=180 | | 9(x+4)=7x+26 | | 88-38=1.71(h-7) | | 2x+3y=96 | | 18+3=3x+18 | | p-38=1.71(20-7) | | 3+6v=45 | | 6w-y=2z | | p-38=1.71(18-7) | | 10t+10=12t | | p-38=1.71(14-7) | | p-38=1.71(7-7) | | -2x+11x-15=0 | | 41-6x=3x+19 | | x+2=3x-4 | | .12=(6x+27) | | 3=d-3.4 | | 11x-24=2 |

Equations solver categories