Simplify [tex]$4x \sqrt{3x} - x \sqrt{3x} - 2x \sqrt{3x}$[/tex].

A. [tex]$x \sqrt{3x}$[/tex]
B. [tex][tex]$x \sqrt{9x}$[/tex][/tex]
C. [tex]$2x \sqrt{6x}$[/tex]
D. [tex]$2x \sqrt{6x^3}$[/tex]



Answer :

Sure, let's simplify the expression [tex]\( 4x\sqrt{3x} - x\sqrt{3x} - 2x\sqrt{3x} \)[/tex] step-by-step.

1. Identify the terms: The expression consists of three terms that all share a common factor. Let's list them individually:
[tex]\[ 4x\sqrt{3x}, \quad -x\sqrt{3x}, \quad -2x\sqrt{3x} \][/tex]

2. Combine like terms: All three terms have the common factor [tex]\( x\sqrt{3x} \)[/tex]. We can factor this out to combine them:
[tex]\[ (4x - x - 2x)\sqrt{3x} \][/tex]

3. Simplify the coefficients: Add the coefficients of [tex]\( x\sqrt{3x} \)[/tex]:
[tex]\[ 4 - 1 - 2 \][/tex]
Calculate the sum of these coefficients:
[tex]\[ 4 - 1 - 2 = 1 \][/tex]

4. Substitute the simplified coefficient back in: Now that we have simplified the coefficients, substitute this back into the expression:
[tex]\[ 1 \cdot x\sqrt{3x} = x\sqrt{3x} \][/tex]

5. Express the result: The expression [tex]\( x\sqrt{3x} \)[/tex] can be further simplified using the property of exponents. Note that
[tex]\[ \sqrt{3x} = (3x)^{1/2} \][/tex]
Therefore,
[tex]\[ x\sqrt{3x} = x \cdot (3x)^{1/2} = x \cdot 3^{1/2} \cdot x^{1/2} = \sqrt{3} \cdot x \cdot x^{1/2} = \sqrt{3} \cdot x^{1 + 1/2} = \sqrt{3} \cdot x^{3/2} \][/tex]

So, the simplified form of the expression [tex]\( 4x\sqrt{3x} - x\sqrt{3x} - 2x\sqrt{3x} \)[/tex] is:
[tex]\[ \sqrt{3}x^{3/2} \][/tex]

Thus, the final result is [tex]\(\sqrt{3}x^{3/2}\)[/tex].