SOLUTION: Please show me step by step how to factor this completely. Thanks!
x^4 -10x^2 -39
Algebra.Com
Question 928771: Please show me step by step how to factor this completely. Thanks!
x^4 -10x^2 -39
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Make a substitution, u=x^2;
, easily and quickly factorable into , and not further factorable, even after reversing the substitution:
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