-3x(x+5)=3(x-1)

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Solution for -3x(x+5)=3(x-1) equation:


Simplifying
-3x(x + 5) = 3(x + -1)

Reorder the terms:
-3x(5 + x) = 3(x + -1)
(5 * -3x + x * -3x) = 3(x + -1)
(-15x + -3x2) = 3(x + -1)

Reorder the terms:
-15x + -3x2 = 3(-1 + x)
-15x + -3x2 = (-1 * 3 + x * 3)
-15x + -3x2 = (-3 + 3x)

Solving
-15x + -3x2 = -3 + 3x

Solving for variable 'x'.

Reorder the terms:
3 + -15x + -3x + -3x2 = -3 + 3x + 3 + -3x

Combine like terms: -15x + -3x = -18x
3 + -18x + -3x2 = -3 + 3x + 3 + -3x

Reorder the terms:
3 + -18x + -3x2 = -3 + 3 + 3x + -3x

Combine like terms: -3 + 3 = 0
3 + -18x + -3x2 = 0 + 3x + -3x
3 + -18x + -3x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
3 + -18x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(1 + -6x + -1x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + -6x + -1x2)' equal to zero and attempt to solve: Simplifying 1 + -6x + -1x2 = 0 Solving 1 + -6x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -1 + 6x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + 6x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + 6x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 6x + x2 = 0 + 1 6x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 6x + x2 = 1 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = 1 + 9 Reorder the terms: 9 + 6x + x2 = 1 + 9 Combine like terms: 1 + 9 = 10 9 + 6x + x2 = 10 Factor a perfect square on the left side: (x + 3)(x + 3) = 10 Calculate the square root of the right side: 3.16227766 Break this problem into two subproblems by setting (x + 3) equal to 3.16227766 and -3.16227766.

Subproblem 1

x + 3 = 3.16227766 Simplifying x + 3 = 3.16227766 Reorder the terms: 3 + x = 3.16227766 Solving 3 + x = 3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 3.16227766 + -3 Combine like terms: 3 + -3 = 0 0 + x = 3.16227766 + -3 x = 3.16227766 + -3 Combine like terms: 3.16227766 + -3 = 0.16227766 x = 0.16227766 Simplifying x = 0.16227766

Subproblem 2

x + 3 = -3.16227766 Simplifying x + 3 = -3.16227766 Reorder the terms: 3 + x = -3.16227766 Solving 3 + x = -3.16227766 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -3.16227766 + -3 Combine like terms: 3 + -3 = 0 0 + x = -3.16227766 + -3 x = -3.16227766 + -3 Combine like terms: -3.16227766 + -3 = -6.16227766 x = -6.16227766 Simplifying x = -6.16227766

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.16227766, -6.16227766}

Solution

x = {0.16227766, -6.16227766}

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