-2x^2+18x=59

Simple and best practice solution for -2x^2+18x=59 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 -2x^2+18x=59 equation:


Simplifying
-2x2 + 18x = 59

Reorder the terms:
18x + -2x2 = 59

Solving
18x + -2x2 = 59

Solving for variable 'x'.

Reorder the terms:
-59 + 18x + -2x2 = 59 + -59

Combine like terms: 59 + -59 = 0
-59 + 18x + -2x2 = 0

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
29.5 + -9x + x2 = 0

Move the constant term to the right:

Add '-29.5' to each side of the equation.
29.5 + -9x + -29.5 + x2 = 0 + -29.5

Reorder the terms:
29.5 + -29.5 + -9x + x2 = 0 + -29.5

Combine like terms: 29.5 + -29.5 = 0.0
0.0 + -9x + x2 = 0 + -29.5
-9x + x2 = 0 + -29.5

Combine like terms: 0 + -29.5 = -29.5
-9x + x2 = -29.5

The x term is -9x.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9x + 20.25 + x2 = -29.5 + 20.25

Reorder the terms:
20.25 + -9x + x2 = -29.5 + 20.25

Combine like terms: -29.5 + 20.25 = -9.25
20.25 + -9x + x2 = -9.25

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = -9.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6(9x+7)-3x= | | 43x-3x/6x=2x | | 3x+2=110 | | 7t^2+8=7 | | 4x+2=110 | | 20+5x=9x-12 | | 6m-9=15 | | -3x+1=-7 | | y+20=v | | -12x-15=-7x-10 | | 10=2(4f+3) | | 2(n-7)-(3-6n)=7n | | x-7x=3 | | 5.95+0.19x=15.83 | | 6x-4=1(3x+2) | | m-6=n | | -3(x-7)+55x= | | tanx=0.08 | | 6z+9-4z=8+z-3 | | 7x-7=2(x+1) | | 6.3=-4+x | | u-15=v | | 5.9=-5+x | | 12x-12=5x+38 | | -11x3/2 | | 18=x+y | | 6x^2+13-45=0 | | 4(5s-11)-8(2s+7)=0 | | .2x-8=9- | | y=2lx-4l+2 | | 6.99+0.55x=11.94 | | 11=-5x+8 |

Equations solver categories