Which of the following expressions is equivalent to [tex]92x^2 + x - 1 + xy + \frac{2x^3}{x}[/tex]?

A. [tex]94x^2 + x + xy - 1[/tex]
B. [tex]92x^2 + 3x + xy - 1[/tex]
C. [tex]2x^2 + 92x + y - 1[/tex]
D. [tex]2x^3 + 92x^2 + 2x + xy - 1[/tex]



Answer :

Sure, let's simplify the given expression step by step:

The original expression is:
[tex]\[ 92 x^2 + x - 1 + x y + \frac{2 x^3}{x} \][/tex]

1. Simplify the term [tex]\(\frac{2 x^3}{x}\)[/tex]:
[tex]\[ \frac{2 x^3}{x} = 2 x^2 \][/tex]

2. Substitute the simplified term back into the expression:
[tex]\[ 92 x^2 + x - 1 + x y + 2 x^2 \][/tex]

3. Combine like terms [tex]\(92 x^2\)[/tex] and [tex]\(2 x^2\)[/tex]:
[tex]\[ 92 x^2 + 2 x^2 = 94 x^2 \][/tex]

4. Combine all the terms together:
[tex]\[ 94 x^2 + x + x y - 1 \][/tex]

So, the simplified expression is:
[tex]\[ 94 x^2 + x + x y - 1 \][/tex]

This matches choice A. Therefore, the correct answer is:

A [tex]\(94 x^2 + x + x y - 1\)[/tex]