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OpenStudy (anonymous):
which one is unfactorable? a) 25x^2-y^2 b) 21x+28 c) x^2+3x+4 d) x^6-1
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OpenStudy (anonymous):
a) cause it involves 2 different variables and hence there is not question about factorising it.... factorising is done for similar variables...
OpenStudy (anonymous):
Hi brackett ,was just wondering about smaller factors such as: a)25x(x)-y(y) b) 7(3x+4) c)x(x+3)+4 d)x(x^5)-1 what do you think?
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