48=x^2-3x

Simple and best practice solution for 48=x^2-3x 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 48=x^2-3x equation:


Simplifying
48 = x2 + -3x

Reorder the terms:
48 = -3x + x2

Solving
48 = -3x + x2

Solving for variable 'x'.

Reorder the terms:
48 + 3x + -1x2 = -3x + 3x + x2 + -1x2

Combine like terms: -3x + 3x = 0
48 + 3x + -1x2 = 0 + x2 + -1x2
48 + 3x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
48 + 3x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-48 + -3x + x2 = 0

Move the constant term to the right:

Add '48' to each side of the equation.
-48 + -3x + 48 + x2 = 0 + 48

Reorder the terms:
-48 + 48 + -3x + x2 = 0 + 48

Combine like terms: -48 + 48 = 0
0 + -3x + x2 = 0 + 48
-3x + x2 = 0 + 48

Combine like terms: 0 + 48 = 48
-3x + x2 = 48

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 = 48 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 48 + 2.25

Combine like terms: 48 + 2.25 = 50.25
2.25 + -3x + x2 = 50.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 50.25

Calculate the square root of the right side: 7.088723439

Break this problem into two subproblems by setting 
(x + -1.5) equal to 7.088723439 and -7.088723439.

Subproblem 1

x + -1.5 = 7.088723439 Simplifying x + -1.5 = 7.088723439 Reorder the terms: -1.5 + x = 7.088723439 Solving -1.5 + x = 7.088723439 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 = 7.088723439 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 7.088723439 + 1.5 x = 7.088723439 + 1.5 Combine like terms: 7.088723439 + 1.5 = 8.588723439 x = 8.588723439 Simplifying x = 8.588723439

Subproblem 2

x + -1.5 = -7.088723439 Simplifying x + -1.5 = -7.088723439 Reorder the terms: -1.5 + x = -7.088723439 Solving -1.5 + x = -7.088723439 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 = -7.088723439 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -7.088723439 + 1.5 x = -7.088723439 + 1.5 Combine like terms: -7.088723439 + 1.5 = -5.588723439 x = -5.588723439 Simplifying x = -5.588723439

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.588723439, -5.588723439}

See similar equations:

| 2x-2=x-1 | | 4(c+11)=2c+18 | | 3(m-2)=45 | | -2lx-1l+10=-4 | | 57+x+x-24=180 | | 3b-7(3+b)=b+3 | | x+3x+x-4=76 | | 18+8y=7-3y | | 3x-7=11+5x | | 2x+48+x=180 | | 5y+4=4y-8 | | 200=6x^2+8xh | | =6x^2+8xh | | -9+4x=-85 | | 82+x+x=180 | | A=6x^2+8xh | | w(w+3)=28 | | -9(2b+4)+(19b-6)=0 | | 2-0.5(f-9)=0.8(f-9) | | 16-5(3t-4)=8(-2t+12) | | -2(x+3)=4x+3 | | 8x-3y=24-5y | | 0.20(24)-0.05x=0.10(24+x) | | x(x+4)+x(x+2)=2x+12 | | 0.3(n-18)=0.9n | | 0.7y-0.5y=6.6 | | 3.4x+4=2.4x | | x+5*-8=0 | | -2x+1=27 | | 2-I/2+5i=0 | | 33+15=3w-w+4w | | -116-6g=-32 |

Equations solver categories