Helooo please help me
1 answer:
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Answer: -216
Step-by-step explanation:
To solve the exercise you must use the formula shown below:
Where:
You should find
The formula to find it is:
Where d is the difference between two consecutive terms.
Then:
Substitute it into the first formula. Therefore, you obtain:
1. Each term in this polynomial has a common factor of :
2. Not sure what the "vertical method" is, but I would guess it refers to some way of visualizing the distributive property.
3. You can use the same approach as in (2), or recall that :
4. Recall that a difference of squares can be factored as . So