Expanding the Expression (2x-2)(3x+5)
This article will demonstrate how to expand the expression (2x-2)(3x+5) using the FOIL method.
Understanding the FOIL Method
FOIL stands for First, Outer, Inner, Last. It's a mnemonic device used to remember the steps for multiplying two binomials.
- First: Multiply the first terms of each binomial.
- Outer: Multiply the outer terms of each binomial.
- Inner: Multiply the inner terms of each binomial.
- Last: Multiply the last terms of each binomial.
Applying FOIL to (2x-2)(3x+5)
- First: (2x) * (3x) = 6x²
- Outer: (2x) * (5) = 10x
- Inner: (-2) * (3x) = -6x
- Last: (-2) * (5) = -10
Combining the Terms
Now, we combine the results of the FOIL method:
6x² + 10x - 6x - 10
Simplifying the Expression
Finally, we combine like terms to simplify the expression:
6x² + 4x - 10
Therefore, the expanded form of (2x-2)(3x+5) is 6x² + 4x - 10.