Simplify the polynomial expression (xy−2)(x^2+1)

.(2 points)
___x^3y+___x2+___xy+___

1 answer

To simplify the expression \((xy - 2)(x^2 + 1)\), we can use the distributive property (also known as the FOIL method for binomials). Here's how it works:

  1. Distribute \(xy\) to every term in \((x^2 + 1)\):

    • \(xy \cdot x^2 = x^3y\)
    • \(xy \cdot 1 = xy\)
  2. Distribute \(-2\) to every term in \((x^2 + 1)\):

    • \(-2 \cdot x^2 = -2x^2\)
    • \(-2 \cdot 1 = -2\)

Now, combine all the results:

\[ (xy - 2)(x^2 + 1) = x^3y + xy - 2x^2 - 2 \]

Now, we'll place it in the required format:

The simplified polynomial expression is:

\[ x^3y + (-2)x^2 + xy + (-2) \]

So, filling in the blanks:

  • ___x^3y: 1
  • ___x^2: -2
  • ___xy: 1
  • ___: -2

Thus, the final answer is: \[ 1, -2, 1, -2 \]