x+(x+2)(x+4)=70

Simple and best practice solution for x+(x+2)(x+4)=70 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 x+(x+2)(x+4)=70 equation:


Simplifying
x + (x + 2)(x + 4) = 70

Reorder the terms:
x + (2 + x)(x + 4) = 70

Reorder the terms:
x + (2 + x)(4 + x) = 70

Multiply (2 + x) * (4 + x)
x + (2(4 + x) + x(4 + x)) = 70
x + ((4 * 2 + x * 2) + x(4 + x)) = 70
x + ((8 + 2x) + x(4 + x)) = 70
x + (8 + 2x + (4 * x + x * x)) = 70
x + (8 + 2x + (4x + x2)) = 70

Combine like terms: 2x + 4x = 6x
x + (8 + 6x + x2) = 70

Reorder the terms:
8 + x + 6x + x2 = 70

Combine like terms: x + 6x = 7x
8 + 7x + x2 = 70

Solving
8 + 7x + x2 = 70

Solving for variable 'x'.

Reorder the terms:
8 + -70 + 7x + x2 = 70 + -70

Combine like terms: 8 + -70 = -62
-62 + 7x + x2 = 70 + -70

Combine like terms: 70 + -70 = 0
-62 + 7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '62' to each side of the equation.
-62 + 7x + 62 + x2 = 0 + 62

Reorder the terms:
-62 + 62 + 7x + x2 = 0 + 62

Combine like terms: -62 + 62 = 0
0 + 7x + x2 = 0 + 62
7x + x2 = 0 + 62

Combine like terms: 0 + 62 = 62
7x + x2 = 62

The x term is 7x.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7x + 12.25 + x2 = 62 + 12.25

Reorder the terms:
12.25 + 7x + x2 = 62 + 12.25

Combine like terms: 62 + 12.25 = 74.25
12.25 + 7x + x2 = 74.25

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = 74.25

Calculate the square root of the right side: 8.61684397

Break this problem into two subproblems by setting 
(x + 3.5) equal to 8.61684397 and -8.61684397.

Subproblem 1

x + 3.5 = 8.61684397 Simplifying x + 3.5 = 8.61684397 Reorder the terms: 3.5 + x = 8.61684397 Solving 3.5 + x = 8.61684397 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = 8.61684397 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = 8.61684397 + -3.5 x = 8.61684397 + -3.5 Combine like terms: 8.61684397 + -3.5 = 5.11684397 x = 5.11684397 Simplifying x = 5.11684397

Subproblem 2

x + 3.5 = -8.61684397 Simplifying x + 3.5 = -8.61684397 Reorder the terms: 3.5 + x = -8.61684397 Solving 3.5 + x = -8.61684397 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.5' to each side of the equation. 3.5 + -3.5 + x = -8.61684397 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = -8.61684397 + -3.5 x = -8.61684397 + -3.5 Combine like terms: -8.61684397 + -3.5 = -12.11684397 x = -12.11684397 Simplifying x = -12.11684397

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.11684397, -12.11684397}

See similar equations:

| 4(6x+6)+6(2x+10)=96 | | 16(0.75x-2)=8x | | -3x+7x=11 | | 14+4+24*6= | | 12x-7=9x+11 | | -6-5x=34 | | 6*6+4-7= | | 6x-2-8x+7=27 | | 3x=(5x-68) | | 7x+4i=-21-(20y)i | | 15-7*14+4= | | 10h+6=76 | | 12x^2-5xy-2y^2= | | 5*6q+7=4-2*3q | | -25b+26b= | | 10+5*14-2= | | 2u+11u= | | 26u+27u= | | 12+32-4*5= | | 15c^2-28c+5=0 | | -18z+(-15z)= | | 1.2m-0.2=3.8m | | 2(-2x+6)=-2x+2 | | 4(7x-4)+4(18-3x)-5(3x+2)=-5 | | 8+5+18*3= | | -13b+25b= | | 23b+6b= | | 4*6+6-4= | | -4x-4+7x=-5x+2 | | (x^2-25)(3x+1)=0 | | 3(x-4)=6(3)-2(x-5) | | 3x=x+90 |

Equations solver categories