0.5x(x+3)=25

Simple and best practice solution for 0.5x(x+3)=25 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 0.5x(x+3)=25 equation:


Simplifying
0.5x(x + 3) = 25

Reorder the terms:
0.5x(3 + x) = 25
(3 * 0.5x + x * 0.5x) = 25
(1.5x + 0.5x2) = 25

Solving
1.5x + 0.5x2 = 25

Solving for variable 'x'.

Reorder the terms:
-25 + 1.5x + 0.5x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-25 + 1.5x + 0.5x2 = 0

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

Divide each side by '0.5'.
-50 + 3x + x2 = 0

Move the constant term to the right:

Add '50' to each side of the equation.
-50 + 3x + 50 + x2 = 0 + 50

Reorder the terms:
-50 + 50 + 3x + x2 = 0 + 50

Combine like terms: -50 + 50 = 0
0 + 3x + x2 = 0 + 50
3x + x2 = 0 + 50

Combine like terms: 0 + 50 = 50
3x + x2 = 50

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 50 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 50 + 2.25

Combine like terms: 50 + 2.25 = 52.25
2.25 + 3x + x2 = 52.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 52.25

Calculate the square root of the right side: 7.228416147

Break this problem into two subproblems by setting 
(x + 1.5) equal to 7.228416147 and -7.228416147.

Subproblem 1

x + 1.5 = 7.228416147 Simplifying x + 1.5 = 7.228416147 Reorder the terms: 1.5 + x = 7.228416147 Solving 1.5 + x = 7.228416147 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 7.228416147 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 7.228416147 + -1.5 x = 7.228416147 + -1.5 Combine like terms: 7.228416147 + -1.5 = 5.728416147 x = 5.728416147 Simplifying x = 5.728416147

Subproblem 2

x + 1.5 = -7.228416147 Simplifying x + 1.5 = -7.228416147 Reorder the terms: 1.5 + x = -7.228416147 Solving 1.5 + x = -7.228416147 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -7.228416147 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -7.228416147 + -1.5 x = -7.228416147 + -1.5 Combine like terms: -7.228416147 + -1.5 = -8.728416147 x = -8.728416147 Simplifying x = -8.728416147

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.728416147, -8.728416147}

See similar equations:

| 3x-2(x+7)=-9 | | 4a-4whena=4 | | 13-8x=-19 | | x-8y=6y | | y^2+4y-x+8=0 | | 2x+7=-x-26 | | 45-3p=3p-9 | | 4x+3=41 | | 2(-1/5+4y/5)-y=-15 | | -155=5(-6x+5) | | 29/100= | | (3+2i)(3-4i)= | | 277=43-y | | 40=20(x+5)+2(x-3) | | -26-3x=16+4x | | 33-4x=13-8x | | -26=-2x-3(-2x+2) | | 33-4x=-21-9x | | 25y=100 | | 6x+9=2x+21 | | (-4i)(6i)= | | 5(-15+y/2)-4y=-1 | | 5x+8=-24-3x | | 25y=6(4-3) | | 4*cos*2x-1=0 | | 3y+78=(4x-2) | | 5(-15/2+y)-4y=-1 | | -5x+19=-26-2x | | xcubed-2xsquared-1=10 | | 5(-15/2+y/2)-4y=-1 | | 9x+17-8x=-2-13 | | 16x^2+32x-1=0 |

Equations solver categories