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3 years ago

8

Factorise :x^2y^2-16

1 answer:

Lyrx [107]3 years ago

5 0

Answer:

(xy - 4)(xy + 4).

Step-by-step explanation:

The is the difference of 2 squares.

a^2 - b^2 = (a - b)(a + b: so we have:

x^2y^2 - 16 = (xy - 4)(xy + 4)

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