Expanding (x+7)(x+5)
This expression represents the product of two binomials. To find the answer, we can use the FOIL method, which stands for First, Outer, Inner, Last:
- First: Multiply the first terms of each binomial: x * x = x²
- Outer: Multiply the outer terms of the binomials: x * 5 = 5x
- Inner: Multiply the inner terms of the binomials: 7 * x = 7x
- Last: Multiply the last terms of each binomial: 7 * 5 = 35
Now, we combine all the terms:
x² + 5x + 7x + 35
Finally, simplify by combining the like terms:
x² + 12x + 35
Therefore, the expanded form of (x+7)(x+5) is x² + 12x + 35.
Other Methods
You can also use the distributive property to solve this problem. Here's how:
- Distribute the first term of the first binomial to both terms in the second binomial: x(x+5) + 7(x+5)
- Expand each multiplication: x² + 5x + 7x + 35
- Combine the like terms: x² + 12x + 35
No matter which method you choose, the final answer will be the same.