8x-x^2=25

Simple and best practice solution for 8x-x^2=25 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 8x-x^2=25 equation:


Simplifying
8x + -1x2 = 25

Solving
8x + -1x2 = 25

Solving for variable 'x'.

Reorder the terms:
-25 + 8x + -1x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-25 + 8x + -1x2 = 0

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

Divide each side by '-1'.
25 + -8x + x2 = 0

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + -8x + -25 + x2 = 0 + -25

Reorder the terms:
25 + -25 + -8x + x2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -8x + x2 = 0 + -25
-8x + x2 = 0 + -25

Combine like terms: 0 + -25 = -25
-8x + x2 = -25

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -25 + 16

Reorder the terms:
16 + -8x + x2 = -25 + 16

Combine like terms: -25 + 16 = -9
16 + -8x + x2 = -9

Factor a perfect square on the left side:
(x + -4)(x + -4) = -9

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5x^2-6x=-1 | | 20x=45 | | 29+x(x-4)=(x-3) | | 3ln(x+3)=ln(x+3)ln(x+5) | | 3x^2+x-24=0 | | 3x^2Z+x-24=0 | | x^3-2*x^2-15*x+8=0 | | 3x+70= | | 50-4x=5x+29 | | 7a+4+8a=13-30 | | 6x+52=9x-11 | | 62-7x=2x+24 | | 187-6x=6x+7 | | 140-6x=2x+20 | | 6x+8=64-2x | | -5x+4=2 | | 4x+71=10x+71 | | 9x+5=3x+23 | | 6=.24x | | 4w^2+5=-9w | | 5x+8=-104 | | 8x^2-34x+21=0 | | 6x^2+27x=0 | | 9x-10=4x+5whatisx | | 8(x+2)-3(x+5)=2(x-2) | | 3(8a-2)-3(2a+4)=0 | | 0=2x | | 5a-6=4(2a+3) | | 5x+10=-86-7x | | 11-9x=62-30x | | 182-6x=5x+17 | | 4x+9=-16-8x |

Equations solver categories