Expanding and Simplifying the Expression (x-2)(x^2+8x-1)
This expression involves multiplying a binomial (x-2) with a trinomial (x^2+8x-1). We can achieve this by using the distributive property, also known as FOIL (First, Outer, Inner, Last).
Applying the Distributive Property
- First: Multiply the first terms of each expression: (x) * (x^2) = x^3
- Outer: Multiply the outer terms of each expression: (x) * (-1) = -x
- Inner: Multiply the inner terms of each expression: (-2) * (x^2) = -2x^2
- Last: Multiply the last terms of each expression: (-2) * (-1) = 2
Now, combine all the terms:
x^3 - x - 2x^2 + 2
Simplifying the Expression
Finally, we can combine like terms to get the simplified form:
x^3 - 2x^2 - x + 2
Therefore, the expanded and simplified form of the expression (x-2)(x^2+8x-1) is x^3 - 2x^2 - x + 2.