0=4x^2-x-18

Simple and best practice solution for 0=4x^2-x-18 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 0=4x^2-x-18 equation:


Simplifying
0 = 4x2 + -1x + -18

Reorder the terms:
0 = -18 + -1x + 4x2

Solving
0 = -18 + -1x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + 18 = 18
18 + x + -4x2 = -18 + -1x + 4x2 + 18 + x + -4x2

Reorder the terms:
18 + x + -4x2 = -18 + 18 + -1x + x + 4x2 + -4x2

Combine like terms: -18 + 18 = 0
18 + x + -4x2 = 0 + -1x + x + 4x2 + -4x2
18 + x + -4x2 = -1x + x + 4x2 + -4x2

Combine like terms: -1x + x = 0
18 + x + -4x2 = 0 + 4x2 + -4x2
18 + x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
18 + x + -4x2 = 0

Factor a trinomial.
(9 + -4x)(2 + x) = 0

Subproblem 1

Set the factor '(9 + -4x)' equal to zero and attempt to solve: Simplifying 9 + -4x = 0 Solving 9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = 0 + -9 -4x = 0 + -9 Combine like terms: 0 + -9 = -9 -4x = -9 Divide each side by '-4'. x = 2.25 Simplifying x = 2.25

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {2.25, -2}

See similar equations:

| 4xsquared-x-18=0 | | -1.5(16x+7)=3(10x-0.5) | | 6(7x+9)=516 | | (3b-2)/5=(b-4)/15 | | x+(0.3x)=18000 | | -7(4a+7)+8a=-89 | | 4x^2-12x-34=0 | | 3x+y+2z=3 | | 100*x=7.3682 | | 7(8+4x)=392 | | 3n^2-11n-14=6 | | 20-3z=14 | | 7u+u=8 | | k=6(11) | | 4x^2-11x-7=-4 | | 16=3(v+4)-5w | | 3(6+6x)=90 | | 3p^2-p-52=0 | | 3(2x+4)=5+5x+1+3x | | -v^2=-32+4v | | 12-(-6x)=48 | | 3(x+5)+6=27 | | 15x-18+8x-6+12x+9+9x+6+6x+9= | | 10/13-4/13 | | y=7*12x | | 3-8(1+3b)=-101 | | x^5+3x^4-9x^3-27x^2=0 | | x+3=3x-15 | | 4y=14-3y | | -7=4v+7 | | 7+5x=4x+16 | | 1/4x4/5 |

Equations solver categories