x^2-8x=-75

Simple and best practice solution for x^2-8x=-75 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 x^2-8x=-75 equation:


Simplifying
x2 + -8x = -75

Reorder the terms:
-8x + x2 = -75

Solving
-8x + x2 = -75

Solving for variable 'x'.

Reorder the terms:
75 + -8x + x2 = -75 + 75

Combine like terms: -75 + 75 = 0
75 + -8x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-75' to each side of the equation.
75 + -8x + -75 + x2 = 0 + -75

Reorder the terms:
75 + -75 + -8x + x2 = 0 + -75

Combine like terms: 75 + -75 = 0
0 + -8x + x2 = 0 + -75
-8x + x2 = 0 + -75

Combine like terms: 0 + -75 = -75
-8x + x2 = -75

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 = -75 + 16

Reorder the terms:
16 + -8x + x2 = -75 + 16

Combine like terms: -75 + 16 = -59
16 + -8x + x2 = -59

Factor a perfect square on the left side:
(x + -4)(x + -4) = -59

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -x^2+22x-121=0 | | 8x+13y=162 | | 10-7t=2t+19 | | 7x-11=-27+3x | | -x^2+20x-100=0 | | m^2-3=m | | X-u=1 | | 5(x-2)=x+4 | | 10x+8=13x-7 | | x^2-10x-21=5 | | 3457x=897 | | 6y^2=10y+1 | | 8r=-8 | | 7(y+4)=49 | | p^2=-16p-60 | | 7y+x-3=42 | | 5x-7=8x-8 | | (12)-9x+7=3x+19 | | 6.3p=15.75 | | x^2-2x+y+2= | | 9(c-3)=45 | | x^2-13x-29=-7x-2 | | 6x+18=8x | | x(2x)(25)=4050 | | f(x)=2x^2-8x+6 | | 3n^3-3n=0 | | 5(49x+9x-7)= | | 8x-40=60 | | -6+1=3 | | 5x-5=2x+5 | | 7a^2+40=-16 | | ahmt=bdmu |

Equations solver categories