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39 votes
39 votes
Factor 25-4z^2
im having trouble with a question

User Claribel
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1 Answer

15 votes
15 votes

Answer:

(5-2z)(5+2z)

Explanation:

25 -4z^2

Rewriting

5^2 - (2z)^2

This is the difference of squares a^2 - b^2 = (a-b)(a+b)

(5-2z)(5+2z)

User Rohit Ramname
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