Discover answers to your most pressing questions at Westonci.ca, the ultimate Q&A platform that connects you with expert solutions. Connect with a community of experts ready to help you find accurate solutions to your questions quickly and efficiently. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

Select the correct answer.

Which expression in factored form is equivalent to this expression?

[tex]\[ 4(x^2 - 2x) - 2(x^2 - 3) \][/tex]

A. \((2x - 3)(x + 1)\)

B. \(2(x + 1)(x + 3)\)

C. \(2(x - 1)(x - 3)\)

D. [tex]\((2x + 3)(x + 1)\)[/tex]


Sagot :

To find the factored form of the given expression, we start with the expression:

[tex]\[ 4(x^2 - 2x) - 2(x^2 - 3) \][/tex]

Let's proceed step by step to simplify and factor the expression.

Step 1: Distribute the constants inside the parentheses.

[tex]\[ 4(x^2 - 2x) = 4x^2 - 8x \][/tex]
[tex]\[ -2(x^2 - 3) = -2x^2 + 6 \][/tex]

Step 2: Combine these two expressions.

[tex]\[ 4x^2 - 8x - 2x^2 + 6 \][/tex]

Step 3: Simplify the combined expression by combining like terms.

[tex]\[ (4x^2 - 2x^2) + (-8x) + 6 = 2x^2 - 8x + 6 \][/tex]

Step 4: Factor the expression \(2x^2 - 8x + 6\).

First, we factor out the greatest common factor (GCF), which is 2:

[tex]\[ 2(x^2 - 4x + 3) \][/tex]

Now, we need to factor the quadratic expression inside the parentheses:

[tex]\[ x^2 - 4x + 3 \][/tex]

To factor \(x^2 - 4x + 3\), we need to find two numbers that multiply to \(3\) (the constant term) and add to \(-4\) (the coefficient of \(x\)).

These two numbers are \(-1\) and \(-3\) because:

[tex]\[ -1 \cdot (-3) = 3 \quad \text{and} \quad -1 + (-3) = -4 \][/tex]

So, the expression \(x^2 - 4x + 3\) can be factored as:

[tex]\[ (x - 1)(x - 3) \][/tex]

Putting it all together, we have:

[tex]\[ 2(x - 1)(x - 3) \][/tex]

Thus, the factored form of the original expression is:

[tex]\[ 2(x - 1)(x - 3) \][/tex]

So, the correct answer is:

C. [tex]\(2(x-1)(x-3)\)[/tex]