4x^2-20x=-27

Simple and best practice solution for 4x^2-20x=-27 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 4x^2-20x=-27 equation:


Simplifying
4x2 + -20x = -27

Reorder the terms:
-20x + 4x2 = -27

Solving
-20x + 4x2 = -27

Solving for variable 'x'.

Reorder the terms:
27 + -20x + 4x2 = -27 + 27

Combine like terms: -27 + 27 = 0
27 + -20x + 4x2 = 0

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

Divide each side by '4'.
6.75 + -5x + x2 = 0

Move the constant term to the right:

Add '-6.75' to each side of the equation.
6.75 + -5x + -6.75 + x2 = 0 + -6.75

Reorder the terms:
6.75 + -6.75 + -5x + x2 = 0 + -6.75

Combine like terms: 6.75 + -6.75 = 0.00
0.00 + -5x + x2 = 0 + -6.75
-5x + x2 = 0 + -6.75

Combine like terms: 0 + -6.75 = -6.75
-5x + x2 = -6.75

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -6.75 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -6.75 + 6.25

Combine like terms: -6.75 + 6.25 = -0.5
6.25 + -5x + x2 = -0.5

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -0.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 30x^4y^2+27x^3y^3-27x^2y^4= | | 7(y+1)-2=5 | | y=x^2-6x-21 | | 49-3x=34 | | 264306=115000x^2+9114x | | 6(2x-7)=30 | | (6x-6)(2x+8)=0 | | 2X^2-7X+72=0 | | x-(-30)=100+9 | | 6n-5=5-11+6n | | 2(m-3)+10=3(m+1)-5 | | 9-2x=1+4x-5x | | -99+180x=0 | | 50x^2-181xy+21y^2= | | 9-2x=1+4x-5 | | 3x^3-46x^2+180x-99=0 | | 2(3s-2)=26 | | 33+-2x= | | X+-6=-3x | | 6x^2+0x+7=0 | | 2+8y=4 | | (2x+9)(9x-2)=0 | | 3x(3x^2+9x)=0 | | 0=-48x^3+12x^2+6x+9 | | 8x^2-125= | | 4(7-x)-43=16x-5(3+4x) | | 1+2.8a+7a=20.6 | | -14t^3-11t^2-2t=0 | | 10x^2+14x=12 | | .2(x)+1(16-x)=.3(16) | | 3-6y+3=2y+12-6y | | 4x^2+10=2x^2-40 |

Equations solver categories