Asked by christina

how do u factor these polynomials~
5x^2 - 5x-60

81-x^4

18a^2b-50b
Answered by Mischa
(5x-20)(x+3)

-(x^2-9)(x^2+9)

Then are you sure the third one is written right? 18a^2b- is a to the 2b or is b something else
Answered by anonymous
its A squared b
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