8x-11=5x(2x+6)

Simple and best practice solution for 8x-11=5x(2x+6) 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 8x-11=5x(2x+6) equation:


Simplifying
8x + -11 = 5x(2x + 6)

Reorder the terms:
-11 + 8x = 5x(2x + 6)

Reorder the terms:
-11 + 8x = 5x(6 + 2x)
-11 + 8x = (6 * 5x + 2x * 5x)
-11 + 8x = (30x + 10x2)

Solving
-11 + 8x = 30x + 10x2

Solving for variable 'x'.

Combine like terms: 8x + -30x = -22x
-11 + -22x + -10x2 = 30x + 10x2 + -30x + -10x2

Reorder the terms:
-11 + -22x + -10x2 = 30x + -30x + 10x2 + -10x2

Combine like terms: 30x + -30x = 0
-11 + -22x + -10x2 = 0 + 10x2 + -10x2
-11 + -22x + -10x2 = 10x2 + -10x2

Combine like terms: 10x2 + -10x2 = 0
-11 + -22x + -10x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(11 + 22x + 10x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(11 + 22x + 10x2)' equal to zero and attempt to solve: Simplifying 11 + 22x + 10x2 = 0 Solving 11 + 22x + 10x2 = 0 Begin completing the square. Divide all terms by 10 the coefficient of the squared term: Divide each side by '10'. 1.1 + 2.2x + x2 = 0.0 Move the constant term to the right: Add '-1.1' to each side of the equation. 1.1 + 2.2x + -1.1 + x2 = 0.0 + -1.1 Reorder the terms: 1.1 + -1.1 + 2.2x + x2 = 0.0 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + 2.2x + x2 = 0.0 + -1.1 2.2x + x2 = 0.0 + -1.1 Combine like terms: 0.0 + -1.1 = -1.1 2.2x + x2 = -1.1 The x term is 2.2x. Take half its coefficient (1.1). Square it (1.21) and add it to both sides. Add '1.21' to each side of the equation. 2.2x + 1.21 + x2 = -1.1 + 1.21 Reorder the terms: 1.21 + 2.2x + x2 = -1.1 + 1.21 Combine like terms: -1.1 + 1.21 = 0.11 1.21 + 2.2x + x2 = 0.11 Factor a perfect square on the left side: (x + 1.1)(x + 1.1) = 0.11 Calculate the square root of the right side: 0.331662479 Break this problem into two subproblems by setting (x + 1.1) equal to 0.331662479 and -0.331662479.

Subproblem 1

x + 1.1 = 0.331662479 Simplifying x + 1.1 = 0.331662479 Reorder the terms: 1.1 + x = 0.331662479 Solving 1.1 + x = 0.331662479 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + x = 0.331662479 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + x = 0.331662479 + -1.1 x = 0.331662479 + -1.1 Combine like terms: 0.331662479 + -1.1 = -0.768337521 x = -0.768337521 Simplifying x = -0.768337521

Subproblem 2

x + 1.1 = -0.331662479 Simplifying x + 1.1 = -0.331662479 Reorder the terms: 1.1 + x = -0.331662479 Solving 1.1 + x = -0.331662479 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.1' to each side of the equation. 1.1 + -1.1 + x = -0.331662479 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + x = -0.331662479 + -1.1 x = -0.331662479 + -1.1 Combine like terms: -0.331662479 + -1.1 = -1.431662479 x = -1.431662479 Simplifying x = -1.431662479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.768337521, -1.431662479}

Solution

x = {-0.768337521, -1.431662479}

See similar equations:

| 50=(4h)h/2 | | 6t-7=n | | 3(4x-8)=-24 | | 3(2X+8)=-39+33 | | 6y+10=ysquared+3y | | 3(2X+8)=39+33 | | -5(7x-9)=-340 | | w(w-6)x^2=0 | | 8+10y=3-5*10y | | -7x+2=24-16x | | 3(4-7x)=-198 | | 2(5X+5)=-37+29 | | 31x-7-19x=3(4x-3)+2 | | 3/4x81/2 | | 9v+8=91 | | x+17=7x+29 | | 7+3y-1=9y+14-5y | | 2(2+6x)=-140 | | (2*x*ln*2*x)+x=0 | | 12.5n+3=2n+4+3n | | 10y-10y=3-5-8 | | x+17=x+29 | | 5(10-5x)=-175 | | x-3=3x-9 | | 0.06(y-8)+0.20y=0.16y-0.9 | | -8(x+7)-(9x-6)=4 | | 135+9x=1624x | | 7x-1=10x-6 | | -7x-9=0-6x | | 14=8x-4 | | 6x-23=3x-5 | | 2x-6-xy^2+3xy^2=0 |

Equations solver categories