Question

The binomial y2 - 49 has y - 7 as one of its factors.

What is the other factor of the binomial?
Helpppp

Answer 1

Answer: y + 7

Explanation:

If you use long division to divide y² - 49 by y - 7, you get the other factor y + 7

y + 7

____________

y - 7 ║ y² - 0 y - 49

- (y² - 7y) ↓

______________

+ 7y - 49

- (7y - 49)

___________

⇒ y² - 49 = (y - 7) (y + 7)

Answer 2

One factor is (y-7) and the other factor is (y+7)