x(x+7)=24

Simple and best practice solution for x(x+7)=24 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+7)=24 equation:


Simplifying
x(x + 7) = 24

Reorder the terms:
x(7 + x) = 24
(7 * x + x * x) = 24
(7x + x2) = 24

Solving
7x + x2 = 24

Solving for variable 'x'.

Reorder the terms:
-24 + 7x + x2 = 24 + -24

Combine like terms: 24 + -24 = 0
-24 + 7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '24' to each side of the equation.
-24 + 7x + 24 + x2 = 0 + 24

Reorder the terms:
-24 + 24 + 7x + x2 = 0 + 24

Combine like terms: -24 + 24 = 0
0 + 7x + x2 = 0 + 24
7x + x2 = 0 + 24

Combine like terms: 0 + 24 = 24
7x + x2 = 24

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 = 24 + 12.25

Reorder the terms:
12.25 + 7x + x2 = 24 + 12.25

Combine like terms: 24 + 12.25 = 36.25
12.25 + 7x + x2 = 36.25

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = 36.25

Calculate the square root of the right side: 6.020797289

Break this problem into two subproblems by setting 
(x + 3.5) equal to 6.020797289 and -6.020797289.

Subproblem 1

x + 3.5 = 6.020797289 Simplifying x + 3.5 = 6.020797289 Reorder the terms: 3.5 + x = 6.020797289 Solving 3.5 + x = 6.020797289 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 = 6.020797289 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = 6.020797289 + -3.5 x = 6.020797289 + -3.5 Combine like terms: 6.020797289 + -3.5 = 2.520797289 x = 2.520797289 Simplifying x = 2.520797289

Subproblem 2

x + 3.5 = -6.020797289 Simplifying x + 3.5 = -6.020797289 Reorder the terms: 3.5 + x = -6.020797289 Solving 3.5 + x = -6.020797289 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 = -6.020797289 + -3.5 Combine like terms: 3.5 + -3.5 = 0.0 0.0 + x = -6.020797289 + -3.5 x = -6.020797289 + -3.5 Combine like terms: -6.020797289 + -3.5 = -9.520797289 x = -9.520797289 Simplifying x = -9.520797289

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.520797289, -9.520797289}

See similar equations:

| 2.5=(x-4)/4 | | (27)2/3 | | (27)2/3x(81)1/4 | | 5=9/.4-r/.3 | | (7+w)(5w-1)=0 | | (x-1)(x+1)=80 | | (x-1)x(x+1)=80 | | -5.5x^2+275x-139=1906 | | 3x/.+9/.5=12 | | 2x+46=4x+10 | | 14+4(2c-1)= | | (14x/a^2)(2a^3x/7x^4) | | 3z^2+16z+13=0 | | 0.75(2m-10)=0.66m+10 | | (x+8)*8=49 | | 55-(3x+8)=3(x+4)+x | | 9f^2-26f=0 | | w^2+31w=0 | | .32=ln(y) | | 3f^2-32f-11=0 | | tanx=-1/sqrt3 | | 1/4(4y)= | | (m+5)+4= | | 1/4(4y) | | tanx=-1/sqr3 | | 2(3+6x)-5=61 | | 1/6=(a-3)/9 | | y=x^2+5x+5x+15 | | 4+15z-1=9z+15-6z | | 7r-9=-63+r | | ((w-6)/3)-8=(w-4)/5 | | 7r-9=63+r |

Equations solver categories