4x^2=8x-13

Simple and best practice solution for 4x^2=8x-13 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=8x-13 equation:


Simplifying
4x2 = 8x + -13

Reorder the terms:
4x2 = -13 + 8x

Solving
4x2 = -13 + 8x

Solving for variable 'x'.

Reorder the terms:
13 + -8x + 4x2 = -13 + 8x + 13 + -8x

Reorder the terms:
13 + -8x + 4x2 = -13 + 13 + 8x + -8x

Combine like terms: -13 + 13 = 0
13 + -8x + 4x2 = 0 + 8x + -8x
13 + -8x + 4x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
13 + -8x + 4x2 = 0

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

Divide each side by '4'.
3.25 + -2x + x2 = 0

Move the constant term to the right:

Add '-3.25' to each side of the equation.
3.25 + -2x + -3.25 + x2 = 0 + -3.25

Reorder the terms:
3.25 + -3.25 + -2x + x2 = 0 + -3.25

Combine like terms: 3.25 + -3.25 = 0.00
0.00 + -2x + x2 = 0 + -3.25
-2x + x2 = 0 + -3.25

Combine like terms: 0 + -3.25 = -3.25
-2x + x2 = -3.25

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = -3.25 + 1

Reorder the terms:
1 + -2x + x2 = -3.25 + 1

Combine like terms: -3.25 + 1 = -2.25
1 + -2x + x2 = -2.25

Factor a perfect square on the left side:
(x + -1)(x + -1) = -2.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -3x+2[3(x+2)+4]=25 | | 3(x-4)-2(5x-3)=8 | | x+7=-23 | | =(2x-3)(4x-3) | | 7x+1=10x-5 | | =3(x-7)-4(5-2x) | | -3(2x-5)+6(2x-3)=0 | | y=5x^2+20x+14 | | x-y=11 | | 5x+24=14x-57 | | 9x+4=5x+24 | | 173-x=57 | | (3x-7)(4x+1)(5x-10)=0 | | 40-3x=-8 | | x-5x-14=0 | | x^2+12x+36=5 | | m-68=-25 | | x^2-12x+1=0 | | -7y=-56 | | 12x+3x=6 | | 12x+3x=-8 | | 2(3m-8)=4(1-m) | | 6(x-8)+x=7(x-8)+8 | | -63+9x=73+x | | -x-4=-8 | | 5(x+4)+2=5x+4 | | 1.4(5-x)=1.2(3-x) | | n-11=11 | | 4x^2-16x-9=0 | | a=2x^2*9x^2 | | (x+1)(-2x-3)=0 | | 17x+11=4(4x+4) |

Equations solver categories