leo4687
26.03.2020 •
Mathematics
Please help fast
Factor completely and show your work: 9x^2 + 3xy - 3x - y
Factor and show your work: 4y^2 - 25
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Ответ:
(3x + y)(3x - 1)
(2y - 5)(2y + 5)
Step-by-step explanation:
9x² + 3xy - 3x - y
3x(3x + y) - 1(3x + y)
(3x + y)(3x - 1)
4y² - 25
(2y)² - 5²
(2y - 5)(2y + 5)
Ответ:
l = 61
have a great dayyy