mikailah0988
05.05.2020 •
Mathematics
(08.06)
What are the factors of x2 - 49? (x - 1)(x + 49)
(x - 7)(x - 7) (x - 7)(x + 7)
Prime
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Ответ:
(x-7)(x+7)
Step-by-step explanation:
x^2 -49
This is the difference of squares
x^2 -7^2
We know that a^2 -b^2 = (a-b)(a+b)
(x-7)(x+7)
Ответ: