(2x+1)(x-4)=9(x-4)

Simple and best practice solution for (2x+1)(x-4)=9(x-4) 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+1)(x-4)=9(x-4) equation:


Simplifying
(2x + 1)(x + -4) = 9(x + -4)

Reorder the terms:
(1 + 2x)(x + -4) = 9(x + -4)

Reorder the terms:
(1 + 2x)(-4 + x) = 9(x + -4)

Multiply (1 + 2x) * (-4 + x)
(1(-4 + x) + 2x * (-4 + x)) = 9(x + -4)
((-4 * 1 + x * 1) + 2x * (-4 + x)) = 9(x + -4)
((-4 + 1x) + 2x * (-4 + x)) = 9(x + -4)
(-4 + 1x + (-4 * 2x + x * 2x)) = 9(x + -4)
(-4 + 1x + (-8x + 2x2)) = 9(x + -4)

Combine like terms: 1x + -8x = -7x
(-4 + -7x + 2x2) = 9(x + -4)

Reorder the terms:
-4 + -7x + 2x2 = 9(-4 + x)
-4 + -7x + 2x2 = (-4 * 9 + x * 9)
-4 + -7x + 2x2 = (-36 + 9x)

Solving
-4 + -7x + 2x2 = -36 + 9x

Solving for variable 'x'.

Reorder the terms:
-4 + 36 + -7x + -9x + 2x2 = -36 + 9x + 36 + -9x

Combine like terms: -4 + 36 = 32
32 + -7x + -9x + 2x2 = -36 + 9x + 36 + -9x

Combine like terms: -7x + -9x = -16x
32 + -16x + 2x2 = -36 + 9x + 36 + -9x

Reorder the terms:
32 + -16x + 2x2 = -36 + 36 + 9x + -9x

Combine like terms: -36 + 36 = 0
32 + -16x + 2x2 = 0 + 9x + -9x
32 + -16x + 2x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
32 + -16x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(16 + -8x + x2) = 0

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

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

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

Solution

x = {4, 4}

See similar equations:

| 119-2x=5x+14 | | 3x+x+2x=90 | | 234x=234 | | -17x-4x=10-7x | | 3x+9=49-2x | | N=0.05x-99.00 | | 3x+x+0.5x=90 | | -2x^2=-8x | | x-5x^2=0 | | 7y=21-5x | | 5+6(t-6)=(t+7)+3 | | 3x-7=x+2 | | 17+6y=8y-15 | | 1+9(t-6)=7(t+1)+4 | | 24+7y=9y-8 | | 5x+7y=21 | | 3a+5=11 | | 6x-9=2-4x | | 37+5x=6x-8 | | 5x+2x=-42 | | 0.25x-1.05=0.55 | | 3+33=33 | | (X-3)(x^2+7x+12)=0 | | X-45=6x-10 | | 4.6x+1.07=27.75 | | -4x+2x=36 | | 6=2x+4 | | 8x+3=2x+6 | | 5(x+2)=8x-10 | | 2x+5=28 | | 5x+40=20 | | 4x^2-35x+47=-7x+2 |

Equations solver categories