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jok3333 [9.3K]
3 years ago
13

How do you factor 5x^4- 5x^2

Mathematics
1 answer:
Len [333]3 years ago
4 0
The greatest common factor is 5x^2 so:

5x^2(x^2-1)  (now notice that the parenthetical term is the difference of perfect squares)

The rule for factoring difference of squares is:  a^2-b^2=(a-b)(a+b) so:

5x^2(x+1)(x-1)
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