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mario62 [17]
3 years ago
5

Select all the factors of: 7x2 − 28 options: 7 7x (x + 2) (x − 2) (x2 + 4)

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
8 0

Answer:

7(x-2)(x+2)

Step-by-step explanation:

7x^2 -28

Factor out a 7

7(x^2 -4)

The terms inside the parentheses is the difference of squares, so it is factorable  (a^2-b^2) = (a-b)(a+b)

7(x-2)(x+2)

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