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Butoxors [25]
3 years ago
12

Can you help me Factorise 9a^2 - 25

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
8 0
Using the A^2 - B^2 = (a-b)(a+b)

(3a-5)(3a+5)
cricket20 [7]3 years ago
7 0
This is an example of a difference of two squares, because both terms are perfect squares. 9a² = (3a)² and 25 is 5²
Thus, we can conclude that:

9a² - 25 = (3a - 5)(3a + 5)
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2 years ago
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4 years ago
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3 years ago
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4 years ago
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