solve the equation (x-9) (3 x+1) =0 x= __?
Question
Updated 6/21/2014 10:46:09 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [6/21/2014 10:45:46 AM]
Original conversation
User: solve the equation (x-9) (3 x+1) =0 x= __?

Weegy: Simplifying (x + -9)(3x + 1) = 0 Reorder the terms: (-9 + x)(3x + 1) = 0 Reorder the terms: (-9 + x)(1 + 3x) = 0 Multiply (-9 + x) * (1 + 3x) (-9(1 + 3x) + x(1 + 3x)) = 0 ((1 * -9 + 3x * -9) + x(1 + 3x)) = 0 ((-9 + -27x) + x(1 + 3x)) = 0 (-9 + [ -27x + (1 * x + 3x * x)) = 0 (-9 + -27x + (1x + 3x2)) = 0 Combine like terms: -27x + 1x = -26x (-9 + -26x + 3x2) = 0 Solving -9 + -26x + 3x2 = 0 Solving for variable 'x'. Factor a trinomial. (-1 + -3x)(9 + -1x) = 0 Subproblem 1 Set the factor '(-1 + -3x)' equal to zero and attempt to solve: Simplifying -1 + -3x = 0 Solving -1 + -3x = 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 + -3x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3x = 0 + 1 -3x = 0 + 1 Combine like terms: 0 + 1 = 1 -3x = 1 Divide each side by '-3'. x = -0.3333333333 Simplifying x = -0.3333333333 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 = {-0.3333333333, 9} ]
Marvel2|Points 1185|

User: solve the equation 4x(x+4) =0 x=___?

Weegy: Simplifying 4 + x = 0 Solving 4 + x = 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 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4 ]

Question
Updated 6/21/2014 10:46:09 AM
This conversation has been flagged as incorrect.
Flagged by yeswey [6/21/2014 10:45:46 AM]
Rating
3
(x - 9) (3x + 1) = 0
x - 9 = 0 or 3x + 1 = 0
x = 9 or x = -1/3
Confirmed by andrewpallarca [6/21/2014 10:48:28 AM]
3
4x(x + 4) = 0
x = 0 or x + 4 = 0
x = 0 or x = -4
Confirmed by andrewpallarca [6/21/2014 10:48:49 AM]

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