If one factor of the difference of two squares is x+2, what is the other factor?
回答 (2)
2020-09-08 5:34 pm
Difference of two squares:
x² - a² = (x + a)(x - a)
The two factors are (x + a) and (x - a).
Now, one of the factors is (x + 2), i.e.
x + 2 = x + a
Hence, a = 2
Other factor is (x - a), i.e. (x - 2).
x² - a² = (x + a)(x - a)
The two factors are (x + a) and (x - a).
Now, one of the factors is (x + 2), i.e.
x + 2 = x + a
Hence, a = 2
Other factor is (x - a), i.e. (x - 2).
2020-09-08 9:10 pm
The other factor could be (x - 2) or (2 - x).
收錄日期: 2021-04-30 17:39:47
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