Expanding (2x+9)(3x-5) into a Trinomial
This article will guide you through the process of expanding the expression (2x+9)(3x-5) into a trinomial.
Understanding the Process
To expand this expression, we'll use the FOIL method. FOIL stands for:
- First: Multiply the first terms of each binomial.
- Outer: Multiply the outer terms of the binomials.
- Inner: Multiply the inner terms of the binomials.
- Last: Multiply the last terms of each binomial.
Expanding the Expression
- First: (2x) * (3x) = 6x²
- Outer: (2x) * (-5) = -10x
- Inner: (9) * (3x) = 27x
- Last: (9) * (-5) = -45
Now, combine the results: 6x² - 10x + 27x - 45
Simplifying to a Trinomial
Combine the like terms (-10x + 27x):
6x² + 17x - 45
Therefore, the expanded form of (2x+9)(3x-5) as a trinomial is 6x² + 17x - 45.