(2w+18)(w-4)-84=w(w+9)

Simple and best practice solution for (2w+18)(w-4)-84=w(w+9) 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 (2w+18)(w-4)-84=w(w+9) equation:


Simplifying
(2w + 18)(w + -4) + -84 = w(w + 9)

Reorder the terms:
(18 + 2w)(w + -4) + -84 = w(w + 9)

Reorder the terms:
(18 + 2w)(-4 + w) + -84 = w(w + 9)

Multiply (18 + 2w) * (-4 + w)
(18(-4 + w) + 2w * (-4 + w)) + -84 = w(w + 9)
((-4 * 18 + w * 18) + 2w * (-4 + w)) + -84 = w(w + 9)
((-72 + 18w) + 2w * (-4 + w)) + -84 = w(w + 9)
(-72 + 18w + (-4 * 2w + w * 2w)) + -84 = w(w + 9)
(-72 + 18w + (-8w + 2w2)) + -84 = w(w + 9)

Combine like terms: 18w + -8w = 10w
(-72 + 10w + 2w2) + -84 = w(w + 9)

Reorder the terms:
-72 + -84 + 10w + 2w2 = w(w + 9)

Combine like terms: -72 + -84 = -156
-156 + 10w + 2w2 = w(w + 9)

Reorder the terms:
-156 + 10w + 2w2 = w(9 + w)
-156 + 10w + 2w2 = (9 * w + w * w)
-156 + 10w + 2w2 = (9w + w2)

Solving
-156 + 10w + 2w2 = 9w + w2

Solving for variable 'w'.

Reorder the terms:
-156 + 10w + -9w + 2w2 + -1w2 = 9w + w2 + -9w + -1w2

Combine like terms: 10w + -9w = 1w
-156 + 1w + 2w2 + -1w2 = 9w + w2 + -9w + -1w2

Combine like terms: 2w2 + -1w2 = 1w2
-156 + 1w + 1w2 = 9w + w2 + -9w + -1w2

Reorder the terms:
-156 + 1w + 1w2 = 9w + -9w + w2 + -1w2

Combine like terms: 9w + -9w = 0
-156 + 1w + 1w2 = 0 + w2 + -1w2
-156 + 1w + 1w2 = w2 + -1w2

Combine like terms: w2 + -1w2 = 0
-156 + 1w + 1w2 = 0

Factor a trinomial.
(-13 + -1w)(12 + -1w) = 0

Subproblem 1

Set the factor '(-13 + -1w)' equal to zero and attempt to solve: Simplifying -13 + -1w = 0 Solving -13 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -1w = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -1w = 0 + 13 -1w = 0 + 13 Combine like terms: 0 + 13 = 13 -1w = 13 Divide each side by '-1'. w = -13 Simplifying w = -13

Subproblem 2

Set the factor '(12 + -1w)' equal to zero and attempt to solve: Simplifying 12 + -1w = 0 Solving 12 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1w = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1w = 0 + -12 -1w = 0 + -12 Combine like terms: 0 + -12 = -12 -1w = -12 Divide each side by '-1'. w = 12 Simplifying w = 12

Solution

w = {-13, 12}

See similar equations:

| 5X-15X+25=6-5(2X-3) | | 7m^2-6m-45=0 | | xm*xn= | | G(x-4)=5(x-4) | | 2x+10=2x+14 | | -[7x-(3x+1)]=-3-[3(3x-3)-3x] | | 4(2p+6)= | | 7x+2-7(x+1)=4x+6 | | x/30=2/3 | | 8=t+4x | | -3x+3=4x+3 | | 3x+(-x+1)=8 | | (4+6)-3= | | 5+4(x-1)=2x+9 | | 12x-3(x+5)=21 | | 6x-3(x-1)=4x-(x-3) | | 19-x=13x | | 5+4(x-1)=2x+2n | | C=2000+1000 | | 4x=5.75 | | -7x*x+5+6x*x=12-(2+x*x) | | (2w+18)(w-4)-84=0 | | Ax+1=9 | | 7p+8=3p | | -2m-18-3(m-3)=4m-(5m-2)-9m+9 | | -5m+12=-7m-12 | | 2(2w)+2w=50 | | 4b^2-9t^2= | | 8(6+3x)=12(2x+4) | | (4x+45)=(5x-18) | | 150m+3.50(m-225)=2000 | | -6.5x+0.23=-2.37 |

Equations solver categories