.75x^2-3x=-4

Simple and best practice solution for .75x^2-3x=-4 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 .75x^2-3x=-4 equation:


Simplifying
0.75x2 + -3x = -4

Reorder the terms:
-3x + 0.75x2 = -4

Solving
-3x + 0.75x2 = -4

Solving for variable 'x'.

Reorder the terms:
4 + -3x + 0.75x2 = -4 + 4

Combine like terms: -4 + 4 = 0
4 + -3x + 0.75x2 = 0

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

Divide each side by '0.75'.
5.333333333 + -4x + x2 = 0

Move the constant term to the right:

Add '-5.333333333' to each side of the equation.
5.333333333 + -4x + -5.333333333 + x2 = 0 + -5.333333333

Reorder the terms:
5.333333333 + -5.333333333 + -4x + x2 = 0 + -5.333333333

Combine like terms: 5.333333333 + -5.333333333 = 0.000000000
0.000000000 + -4x + x2 = 0 + -5.333333333
-4x + x2 = 0 + -5.333333333

Combine like terms: 0 + -5.333333333 = -5.333333333
-4x + x2 = -5.333333333

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -5.333333333 + 4

Reorder the terms:
4 + -4x + x2 = -5.333333333 + 4

Combine like terms: -5.333333333 + 4 = -1.333333333
4 + -4x + x2 = -1.333333333

Factor a perfect square on the left side:
(x + -2)(x + -2) = -1.333333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 9x^2/7x | | x-9y-z=a | | -t^4+4t^3+5t-40=0 | | y=x^2-14x+19 | | x+2x+0.5x=121.11 | | 5(6x-6)+4=4 | | 7x+7=4+2x | | 6p+4q+3p+7q= | | 3(x+2)=14+x | | 5(3p-1)=2 | | -4x-12x=-80 | | x+3x+0.5x=121.11 | | 3x^2-.75x+1.5=0 | | 8x-3=6x+0 | | 1/4^3 | | 5x-30+4=4 | | 6x-2=42-5x | | 12=9/5a | | 8x+7=6x+14 | | 15x-6=45x+6 | | (3y)^2/7 | | (4X+7)+(3X+5)=180 | | Y=ln(2x+6) | | 12x+3=6x+15 | | 6x+7=37-4x | | x^1=19 | | -3x-4(-4x-3)=64 | | 5w-8+w+5w-8+w= | | 45=3(3+3x) | | 2w+16w= | | 3.14*9*h=141.3 | | 12=X+1X |

Equations solver categories