4x^2+13=8x

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


Simplifying
4x2 + 13 = 8x

Reorder the terms:
13 + 4x2 = 8x

Solving
13 + 4x2 = 8x

Solving for variable 'x'.

Reorder the terms:
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:

| 7l+3=20 | | 7(5g+6)/2=56 | | -6n(10n-7)=0 | | 13d+3=6d+31 | | 20x^2+36x+16=0 | | 4(x-8)=-6 | | 67-5x=13x+15 | | 9(a+9)=116.1 | | 6a+3=a | | (3x+12)(7x+8)=0 | | 6a+3= | | 40n^2-88n-96=0 | | 9a-9=20 | | 11-7x=50-28x | | 2+3(2x+4)=13 | | 9a+32= | | 2x+12=2x+4x+4 | | 9a-23=2a | | -8(a+b)= | | -6.5x=-29.25 | | 9a-23=27 | | 7+2(p+6)=-(1+8p) | | 2x+9=-5x+37 | | 9a-23=20 | | 8b^2+24b-32=0 | | 9a-23=30 | | 6x+13=-115-10x | | (12-4)(-5)= | | (-3x^8)(2x^9)= | | 9(3x+4)=-7(x-10) | | -29z+7z=12z-29-28-19z | | v^2+16v+64=0 |

Equations solver categories