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coldgirl [10]
3 years ago
10

Factor the following polynomial completely. -x2y2 + x4 + 9y2 - 9x2

Mathematics
1 answer:
arsen [322]3 years ago
5 0
Factor by grouping, -x2y2+9y2= y2(-x2+9)
x4-9x2=- x2(-x2+9)
= (y2-x2)(-x2+9)

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