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Slav-nsk [51]
3 years ago
13

Factor completely. 28 – 7x2

Mathematics
1 answer:
coldgirl [10]3 years ago
5 0

Answer:

7(2+x)(2-x)

Step-by-step explanation:

Both terms are perfect squares,use the difference of square formulas

a^2-b^2=(a+b)(a-b) where a=2 and b=x

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