sundaywallace6361
30.09.2019 •
Mathematics
What is the factored form of x2 + 3xy - 28y2?
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Ответ:
What are the factors of 28 that subtract to give you 3?
1 * 28, 2*14, 4*7, 7*4, 14*2, 28*1
1-28 = -27
2-14 = -12
4 - 7 = -3
7 - 4 = 3
14 - 2 = 12
28 -1 = 27
(x + 7y)(x - 4y)
Ответ:
answer: a
step-by-step explanation:
3.00/6=.50
4.80/12=.40