(x-9)(4x+1)=0

Simple and best practice solution for (x-9)(4x+1)=0 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-9)(4x+1)=0 equation:


Simplifying
(x + -9)(4x + 1) = 0

Reorder the terms:
(-9 + x)(4x + 1) = 0

Reorder the terms:
(-9 + x)(1 + 4x) = 0

Multiply (-9 + x) * (1 + 4x)
(-9(1 + 4x) + x(1 + 4x)) = 0
((1 * -9 + 4x * -9) + x(1 + 4x)) = 0
((-9 + -36x) + x(1 + 4x)) = 0
(-9 + -36x + (1 * x + 4x * x)) = 0
(-9 + -36x + (1x + 4x2)) = 0

Combine like terms: -36x + 1x = -35x
(-9 + -35x + 4x2) = 0

Solving
-9 + -35x + 4x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -4x)(9 + -1x) = 0

Subproblem 1

Set the factor '(-1 + -4x)' equal to zero and attempt to solve: Simplifying -1 + -4x = 0 Solving -1 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -4x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -4x = 0 + 1 -4x = 0 + 1 Combine like terms: 0 + 1 = 1 -4x = 1 Divide each side by '-4'. x = -0.25 Simplifying x = -0.25

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 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 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {-0.25, 9}

See similar equations:

| -17=y-5 | | -(9x-9)= | | Z^3-z^2-56=0 | | 2x-3=39 | | 4-(u+3)=4+(2u-12) | | x^2-14x+11=0 | | 2x-3=43 | | 3x+2X=24 | | 5s+4r= | | x^2-6x-8=0 | | x^2+3-1=2 | | (10x-12)=4(x+2)+4 | | 3x^2-24x-6=0 | | 3s^4+10s^3+21s^2+24s-16=0 | | x+2=3x | | 7x^2-15x+6=0 | | 6x+10=10x-10 | | 5x^2+4=5 | | 3x*(x+4)=4x+1*(x+2) | | 7x^22=175 | | -2y+11=-6y+35 | | 2x^2-2xy-3y^2-6=0 | | 24r^2-18r=0 | | 55x+5= | | 2x^2-2xy+3y^2=6 | | 8(2x+5)=0 | | 6r(4r-3)=0 | | (9x+8)(9x+8)=9 | | a^2-ab-72b^2=0 | | 4n^2-15n-4=0 | | 5v^2+13v=-6 | | 9-5z=24 |

Equations solver categories