anastasiahamel42 anastasiahamel42

13-04-2022
Mathematics

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factor the following using the difference of squares method

a) x^2 - 16 b) 9y^2 - 25

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cutylovely68 cutylovely68

13-04-2022

Answer:

a)

[tex] {x}^{2} - 16 \\ = {x}^{2} - {4}^{2} \\ = (x + 4)(x - 4)[/tex]

b)

[tex] {9y}^{2} - 25 \\ = {(3y)}^{2} - {5}^{2} \\ = (3y + 5)(3y - 5) [/tex]

here is the answer hope that will help you

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