grumpygirl0720
17.07.2019 •
Mathematics
Explain how you would factor 9x^2 – 49 show your work and use complete sentences. what is this special type of factoring called?
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Ответ:
(3x)² - (7)²
= (3x + 7)(3x - 7)
This type of factoring is called Difference of Two Squares
where x² - y² = (x + y)(x - y)
Ответ:
5
Step-by-step explanation:
N/A