(3x+30)(3x+3)-(2x-1)(2x-1)=0

Simple and best practice solution for (3x+30)(3x+3)-(2x-1)(2x-1)=0 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 (3x+30)(3x+3)-(2x-1)(2x-1)=0 equation:


Simplifying
(3x + 30)(3x + 3) + -1(2x + -1)(2x + -1) = 0

Reorder the terms:
(30 + 3x)(3x + 3) + -1(2x + -1)(2x + -1) = 0

Reorder the terms:
(30 + 3x)(3 + 3x) + -1(2x + -1)(2x + -1) = 0

Multiply (30 + 3x) * (3 + 3x)
(30(3 + 3x) + 3x * (3 + 3x)) + -1(2x + -1)(2x + -1) = 0
((3 * 30 + 3x * 30) + 3x * (3 + 3x)) + -1(2x + -1)(2x + -1) = 0
((90 + 90x) + 3x * (3 + 3x)) + -1(2x + -1)(2x + -1) = 0
(90 + 90x + (3 * 3x + 3x * 3x)) + -1(2x + -1)(2x + -1) = 0
(90 + 90x + (9x + 9x2)) + -1(2x + -1)(2x + -1) = 0

Combine like terms: 90x + 9x = 99x
(90 + 99x + 9x2) + -1(2x + -1)(2x + -1) = 0

Reorder the terms:
90 + 99x + 9x2 + -1(-1 + 2x)(2x + -1) = 0

Reorder the terms:
90 + 99x + 9x2 + -1(-1 + 2x)(-1 + 2x) = 0

Multiply (-1 + 2x) * (-1 + 2x)
90 + 99x + 9x2 + -1(-1(-1 + 2x) + 2x * (-1 + 2x)) = 0
90 + 99x + 9x2 + -1((-1 * -1 + 2x * -1) + 2x * (-1 + 2x)) = 0
90 + 99x + 9x2 + -1((1 + -2x) + 2x * (-1 + 2x)) = 0
90 + 99x + 9x2 + -1(1 + -2x + (-1 * 2x + 2x * 2x)) = 0
90 + 99x + 9x2 + -1(1 + -2x + (-2x + 4x2)) = 0

Combine like terms: -2x + -2x = -4x
90 + 99x + 9x2 + -1(1 + -4x + 4x2) = 0
90 + 99x + 9x2 + (1 * -1 + -4x * -1 + 4x2 * -1) = 0
90 + 99x + 9x2 + (-1 + 4x + -4x2) = 0

Reorder the terms:
90 + -1 + 99x + 4x + 9x2 + -4x2 = 0

Combine like terms: 90 + -1 = 89
89 + 99x + 4x + 9x2 + -4x2 = 0

Combine like terms: 99x + 4x = 103x
89 + 103x + 9x2 + -4x2 = 0

Combine like terms: 9x2 + -4x2 = 5x2
89 + 103x + 5x2 = 0

Solving
89 + 103x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
17.8 + 20.6x + x2 = 0

Move the constant term to the right:

Add '-17.8' to each side of the equation.
17.8 + 20.6x + -17.8 + x2 = 0 + -17.8

Reorder the terms:
17.8 + -17.8 + 20.6x + x2 = 0 + -17.8

Combine like terms: 17.8 + -17.8 = 0.0
0.0 + 20.6x + x2 = 0 + -17.8
20.6x + x2 = 0 + -17.8

Combine like terms: 0 + -17.8 = -17.8
20.6x + x2 = -17.8

The x term is 20.6x.  Take half its coefficient (10.3).
Square it (106.09) and add it to both sides.

Add '106.09' to each side of the equation.
20.6x + 106.09 + x2 = -17.8 + 106.09

Reorder the terms:
106.09 + 20.6x + x2 = -17.8 + 106.09

Combine like terms: -17.8 + 106.09 = 88.29
106.09 + 20.6x + x2 = 88.29

Factor a perfect square on the left side:
(x + 10.3)(x + 10.3) = 88.29

Calculate the square root of the right side: 9.396275858

Break this problem into two subproblems by setting 
(x + 10.3) equal to 9.396275858 and -9.396275858.

Subproblem 1

x + 10.3 = 9.396275858 Simplifying x + 10.3 = 9.396275858 Reorder the terms: 10.3 + x = 9.396275858 Solving 10.3 + x = 9.396275858 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.3' to each side of the equation. 10.3 + -10.3 + x = 9.396275858 + -10.3 Combine like terms: 10.3 + -10.3 = 0.0 0.0 + x = 9.396275858 + -10.3 x = 9.396275858 + -10.3 Combine like terms: 9.396275858 + -10.3 = -0.903724142 x = -0.903724142 Simplifying x = -0.903724142

Subproblem 2

x + 10.3 = -9.396275858 Simplifying x + 10.3 = -9.396275858 Reorder the terms: 10.3 + x = -9.396275858 Solving 10.3 + x = -9.396275858 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.3' to each side of the equation. 10.3 + -10.3 + x = -9.396275858 + -10.3 Combine like terms: 10.3 + -10.3 = 0.0 0.0 + x = -9.396275858 + -10.3 x = -9.396275858 + -10.3 Combine like terms: -9.396275858 + -10.3 = -19.696275858 x = -19.696275858 Simplifying x = -19.696275858

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.903724142, -19.696275858}

See similar equations:

| -4-1-1= | | 5(h+2)+3(h+4)=78 | | 3y=5(v-4) | | -2+5-3= | | 9+3x=6-(2x) | | (3x-30)(3x+3)-(2x-1)(2x-1)=0 | | T=C(9+AB)forB | | 2128.88=2100.00(1+0.25) | | 5y^2+8y=13 | | cos(4x)-cos(2x)+sin(3x)=0 | | 2x-3-1= | | (3x-30)(3x+3)-(2x-1)*2=0 | | 5x-57-2x= | | X^4-3x^3+x^2-3x+3=0 | | 35/20=n/4 | | 10=-7x-x^2 | | 4x+-5=7x-3 | | -(6v-2x-1)= | | -2-3-1= | | 270=0.5x^2+36x-40 | | 5-4-4= | | (2x+3)(x-6)-(5x+3)(3x+4)= | | 9r^2-5=76 | | ×/5=7.5 | | 4y+12=7y+36 | | 5m+4=3m+16 | | x^2-2x+2y^2=8 | | 100-50/10*5 | | -23=6r+16 | | 8-6-2= | | (3x-30)(3x+3)-(2x-1)=0 | | y^2-26y+45=0 |

Equations solver categories