2x(3x-5)=3(7-8x)

Simple and best practice solution for 2x(3x-5)=3(7-8x) 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(3x-5)=3(7-8x) equation:


Simplifying
2x(3x + -5) = 3(7 + -8x)

Reorder the terms:
2x(-5 + 3x) = 3(7 + -8x)
(-5 * 2x + 3x * 2x) = 3(7 + -8x)
(-10x + 6x2) = 3(7 + -8x)
-10x + 6x2 = (7 * 3 + -8x * 3)
-10x + 6x2 = (21 + -24x)

Solving
-10x + 6x2 = 21 + -24x

Solving for variable 'x'.

Reorder the terms:
-21 + -10x + 24x + 6x2 = 21 + -24x + -21 + 24x

Combine like terms: -10x + 24x = 14x
-21 + 14x + 6x2 = 21 + -24x + -21 + 24x

Reorder the terms:
-21 + 14x + 6x2 = 21 + -21 + -24x + 24x

Combine like terms: 21 + -21 = 0
-21 + 14x + 6x2 = 0 + -24x + 24x
-21 + 14x + 6x2 = -24x + 24x

Combine like terms: -24x + 24x = 0
-21 + 14x + 6x2 = 0

Begin completing the square.  Divide all terms by
6 the coefficient of the squared term: 

Divide each side by '6'.
-3.5 + 2.333333333x + x2 = 0

Move the constant term to the right:

Add '3.5' to each side of the equation.
-3.5 + 2.333333333x + 3.5 + x2 = 0 + 3.5

Reorder the terms:
-3.5 + 3.5 + 2.333333333x + x2 = 0 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + 2.333333333x + x2 = 0 + 3.5
2.333333333x + x2 = 0 + 3.5

Combine like terms: 0 + 3.5 = 3.5
2.333333333x + x2 = 3.5

The x term is 2.333333333x.  Take half its coefficient (1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
2.333333333x + 1.361111112 + x2 = 3.5 + 1.361111112

Reorder the terms:
1.361111112 + 2.333333333x + x2 = 3.5 + 1.361111112

Combine like terms: 3.5 + 1.361111112 = 4.861111112
1.361111112 + 2.333333333x + x2 = 4.861111112

Factor a perfect square on the left side:
(x + 1.166666667)(x + 1.166666667) = 4.861111112

Calculate the square root of the right side: 2.204792759

Break this problem into two subproblems by setting 
(x + 1.166666667) equal to 2.204792759 and -2.204792759.

Subproblem 1

x + 1.166666667 = 2.204792759 Simplifying x + 1.166666667 = 2.204792759 Reorder the terms: 1.166666667 + x = 2.204792759 Solving 1.166666667 + x = 2.204792759 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.166666667' to each side of the equation. 1.166666667 + -1.166666667 + x = 2.204792759 + -1.166666667 Combine like terms: 1.166666667 + -1.166666667 = 0.000000000 0.000000000 + x = 2.204792759 + -1.166666667 x = 2.204792759 + -1.166666667 Combine like terms: 2.204792759 + -1.166666667 = 1.038126092 x = 1.038126092 Simplifying x = 1.038126092

Subproblem 2

x + 1.166666667 = -2.204792759 Simplifying x + 1.166666667 = -2.204792759 Reorder the terms: 1.166666667 + x = -2.204792759 Solving 1.166666667 + x = -2.204792759 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.166666667' to each side of the equation. 1.166666667 + -1.166666667 + x = -2.204792759 + -1.166666667 Combine like terms: 1.166666667 + -1.166666667 = 0.000000000 0.000000000 + x = -2.204792759 + -1.166666667 x = -2.204792759 + -1.166666667 Combine like terms: -2.204792759 + -1.166666667 = -3.371459426 x = -3.371459426 Simplifying x = -3.371459426

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.038126092, -3.371459426}

See similar equations:

| 67=5x+4x | | K^2-6k-8=0 | | .5(2n+6)=0.2(8n-10) | | 60/300×100 | | f(d)=120+60d | | .39x=.46 | | 5x^2+2x-7+2x^2+3-3x= | | 13-6x=x-1 | | .5y^3=32 | | 0.12(y-5)+0.14y=0.10-0.05(40) | | Sin(5x)COS(2x)-cos(5x)Sin(x)=0 | | 2x^2+5x-24=0 | | y=-0.1x^2+4x+6 | | 16x^2-72xy+81y^2-12x+27y= | | x+(x*1.5)=1346.15 | | 37+(-17.96)= | | 5-(6x-8)=x-1 | | 37+(-17.9)= | | 2x^2011+5x-7=0 | | -5(t-3)+8t=7t-2 | | 31=6.2xy | | 25/75 | | y/-3=12 | | T=24t-2t^2+5 | | .09255xX=15 | | 4v^2= | | 1/2d=-12 | | 10x/5x | | n/12=.75 | | 9x-(5x+1)-(2+8x(7x-5))+9x=0 | | 9*-3y=12 | | 3*4+m=1 |

Equations solver categories