4x^2-21x+18=-8x+8

Simple and best practice solution for 4x^2-21x+18=-8x+8 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^2-21x+18=-8x+8 equation: 


Simplifying
4x2 + -21x + 18 = -8x + 8

Reorder the terms:
18 + -21x + 4x2 = -8x + 8

Reorder the terms:
18 + -21x + 4x2 = 8 + -8x

Solving
18 + -21x + 4x2 = 8 + -8x

Solving for variable 'x'.

Reorder the terms:
18 + -8 + -21x + 8x + 4x2 = 8 + -8x + -8 + 8x

Combine like terms: 18 + -8 = 10
10 + -21x + 8x + 4x2 = 8 + -8x + -8 + 8x

Combine like terms: -21x + 8x = -13x
10 + -13x + 4x2 = 8 + -8x + -8 + 8x

Reorder the terms:
10 + -13x + 4x2 = 8 + -8 + -8x + 8x

Combine like terms: 8 + -8 = 0
10 + -13x + 4x2 = 0 + -8x + 8x
10 + -13x + 4x2 = -8x + 8x

Combine like terms: -8x + 8x = 0
10 + -13x + 4x2 = 0

Factor a trinomial.
(5 + -4x)(2 + -1x) = 0


Subproblem 1
Set the factor '(5 + -4x)' equal to zero and attempt to solve:

Simplifying
5 + -4x = 0

Solving
5 + -4x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + -4x = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -4x = 0 + -5
-4x = 0 + -5

Combine like terms: 0 + -5 = -5
-4x = -5

Divide each side by '-4'.
x = 1.25

Simplifying
x = 1.25

Subproblem 2
Set the factor '(2 + -1x)' equal to zero and attempt to solve:

Simplifying
2 + -1x = 0

Solving
2 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + -1x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1x = 0 + -2
-1x = 0 + -2

Combine like terms: 0 + -2 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2
Solution
x = {1.25, 2}

See similar equations:

| 1/3(y-18)=6 | | 2a+9=1a+5 | | 177=6x+5(5x-8) | | x^4-x^2=42 | | 7-3=2x+2 | | 14x-6=-2x+8 | | 3x^12+10=95 | | x^8+6x^4+9=0 | | 1+0.25p=2+0.75p | | 7x+3x=-50 | | 5x^2+5=185 | | (6x^4)+(7x^2)-3=0 | | 13=2c-3(c+4) | | x^64=0 | | 5q^4-5n^4=0 | | 1.666666667y=0 | | 7y+8x=-56 | | 3x+3=5(x+2) | | f=2+20 | | N-14=21 | | X^4-2*X+1=0 | | 36+-12x=-6x+-36 | | 4a+7-3a=-2a | | 4x-7y=5 | | 6x^3+3x^2-18x=0 | | N+24=44 | | 2x+17=16-4x | | 15x-10x=95 | | 1/3+3/8+(-1/3)+(-4/5)= | | 8-0.5=3 | | 15x-10=95 | | 5x^2-15x+7=0 |

Equations solver categories