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

__x^3y + __x^2 + __xy + __

1 answer

To simplify the polynomial expression \((xy - 2)(x^2 + 1)\), we will use the distributive property (also known as the FOIL method for binomials).

We can distribute \(xy\) and \(-2\) to both terms in \((x^2 + 1)\):

  1. Distributing \(xy\):

    • \(xy \cdot x^2 = x^3y\)
    • \(xy \cdot 1 = xy\)
  2. Distributing \(-2\):

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

Now we can combine these results: \[ (xy - 2)(x^2 + 1) = x^3y + xy - 2x^2 - 2 \]

Rearranging the terms: \[ x^3y - 2x^2 + xy - 2 \]

Thus, filling in the blanks in the format \(x^3y + x^2 + xy + \text{constant}\):

  • The coefficient of \(x^3y\) is \(1\),
  • The coefficient of \(x^2\) is \(-2\),
  • The coefficient of \(xy\) is \(1\),
  • The constant term is \(-2\).

Putting it all together, we have: \[ \boxed{1} \quad \boxed{-2} \quad \boxed{1} \quad \boxed{-2} \]