(x^3-27)(x^3-1)(2x+3-x^2) =0

4 min read Jun 03, 2024
(x^3-27)(x^3-1)(2x+3-x^2) =0

Factoring and Solving the Equation (x^3-27)(x^3-1)(2x+3-x^2) = 0

In this article, we will explore the process of factoring and solving the equation (x^3-27)(x^3-1)(2x+3-x^2) = 0.

Factoring the Equation

The given equation is a product of three binomials and a quadratic trinomial. To solve for x, we need to set each factor equal to zero and solve for x.

(x^3-27) = 0

This equation is a difference of cubes:

x^3 - 27 = x^3 - 3^3 = (x-3)(x^2+3x+3^2) = 0

This tells us that either (x-3) = 0 or (x^2+3x+3^2) = 0.

(x-3) = 0

Solving for x, we get:

x = 3

(x^2+3x+3^2) = 0

This quadratic equation cannot be factored further, so we can use the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / 2a

In this case, a = 1, b = 3, and c = 3^2. Plugging these values into the formula, we get:

x = (-(3) ± √((3)^2 - 4(1)(3^2))) / 2(1)

Simplifying, we get two complex solutions:

x = (-3 ± √(-27)) / 2

(x^3-1) = 0

This equation is also a difference of cubes:

x^3 - 1 = x^3 - 1^3 = (x-1)(x^2+x+1) = 0

This tells us that either (x-1) = 0 or (x^2+x+1) = 0.

(x-1) = 0

Solving for x, we get:

x = 1

(x^2+x+1) = 0

This quadratic equation cannot be factored further, so we can use the quadratic formula again:

x = (-(1) ± √((1)^2 - 4(1)(1))) / 2(1)

Simplifying, we get two complex solutions:

x = (-1 ± √(-3)) / 2

(2x+3-x^2) = 0

This quadratic equation can be factored:

2x + 3 - x^2 = (x-1)(2+x) = 0

This tells us that either (x-1) = 0 or (2+x) = 0.

(x-1) = 0

We already know that x = 1 is a solution.

(2+x) = 0

Solving for x, we get:

x = -2

Solving the Equation

Combining all the solutions, we get:

x = 3 , x = 1 , x = -2 , x = (-3 ± √(-27)) / 2 , x = (-1 ± √(-3)) / 2

These are the roots of the equation (x^3-27)(x^3-1)(2x+3-x^2) = 0.

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