18x^2+5-[8(x^2-6)+9]=x

Simple and best practice solution for 18x^2+5-[8(x^2-6)+9]=x 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 18x^2+5-[8(x^2-6)+9]=x equation:


Simplifying
18x2 + 5 + -1[8(x2 + -6) + 9] = x

Reorder the terms:
18x2 + 5 + -1[8(-6 + x2) + 9] = x
18x2 + 5 + -1[(-6 * 8 + x2 * 8) + 9] = x
18x2 + 5 + -1[(-48 + 8x2) + 9] = x

Reorder the terms:
18x2 + 5 + -1[-48 + 9 + 8x2] = x

Combine like terms: -48 + 9 = -39
18x2 + 5 + -1[-39 + 8x2] = x
18x2 + 5 + [-39 * -1 + 8x2 * -1] = x
18x2 + 5 + [39 + -8x2] = x

Reorder the terms:
5 + 39 + 18x2 + -8x2 = x

Combine like terms: 5 + 39 = 44
44 + 18x2 + -8x2 = x

Combine like terms: 18x2 + -8x2 = 10x2
44 + 10x2 = x

Solving
44 + 10x2 = x

Solving for variable 'x'.

Reorder the terms:
44 + -1x + 10x2 = x + -1x

Combine like terms: x + -1x = 0
44 + -1x + 10x2 = 0

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

Divide each side by '10'.
4.4 + -0.1x + x2 = 0.0

Move the constant term to the right:

Add '-4.4' to each side of the equation.
4.4 + -0.1x + -4.4 + x2 = 0.0 + -4.4

Reorder the terms:
4.4 + -4.4 + -0.1x + x2 = 0.0 + -4.4

Combine like terms: 4.4 + -4.4 = 0.0
0.0 + -0.1x + x2 = 0.0 + -4.4
-0.1x + x2 = 0.0 + -4.4

Combine like terms: 0.0 + -4.4 = -4.4
-0.1x + x2 = -4.4

The x term is -0.1x.  Take half its coefficient (-0.05).
Square it (0.0025) and add it to both sides.

Add '0.0025' to each side of the equation.
-0.1x + 0.0025 + x2 = -4.4 + 0.0025

Reorder the terms:
0.0025 + -0.1x + x2 = -4.4 + 0.0025

Combine like terms: -4.4 + 0.0025 = -4.3975
0.0025 + -0.1x + x2 = -4.3975

Factor a perfect square on the left side:
(x + -0.05)(x + -0.05) = -4.3975

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| j+3j+2=-14 | | 2x+.50=.75x-1.375 | | 2m^2-3m-9=0 | | -(4x+5)-(5x-7)=7-(3x+1) | | x+1/10=9/10 | | 2y+10=3y-2 | | 0.02x+0.07(100-x)=3 | | -2(x+3)+93=7x-9(x-5) | | 2n^2+3n+1=0 | | 3t+2t=15+10 | | 2xy+8=(2y+3+c^2)*4 | | 4m-2=3m-4 | | 16x+8(x+1)=24(x+1)-16 | | 2.7u-6.2=7.3 | | aj-9j+3=-32 | | -25(x-78)=x-(-54) | | y=36x-3x^2 | | .20(x-12)=.25(x-15) | | 5x-7=7-9x | | .625(8x+32)+1=.50(12x-2)+13 | | -3(4y-5)=3(1-5y)+14 | | 4a^2-28ab+49ab^2=0 | | 6(3x-7)-8=6(x-2)+22 | | 5x-7x+65=4x+35 | | 91(y-29)=y+(-58) | | -3(6y-5)=3(1-7y)+14 | | -4(2)+6=-2 | | 7x-2+x=10x-1-x | | -4y+6=-2 | | -8(t-4)-3(3t+1)=-5 | | -63(y-83)=y+56 | | 3(-3)+2=2((-3)-4)+7 |

Equations solver categories