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Factor completely 25x² - 49
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4 votes
Factor completely 25x² - 49

User Gregoire Ducharme
by
7.3k points

2 Answers

3 votes

Answer:

(5x-7) x (5x+7)

Explanation:

25x^2- 49

5^2 x 2^2 - 49

5^2 x 2^2 -7^2

(5x)^2 -7^2

(5x-7) x (5x+7)

User Kishath
by
6.7k points
2 votes

Answer:

(5x-7)(5x+7)

Explanation:


25x^2-49\\=(5x)^2-(7)^2\\=(5x-7)(5x+7)

Remember that the difference of squares formula is
a^2-b^2=(a-b)(a+b).

User Irsis
by
7.3k points
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