SOLUTION: Could you please help me factor this problem? 1-125b^3

Question 7809: Could you please help me factor this problem? 1-125b^3
Found 2 solutions by arunpaul, JimMarshall:
Answer by arunpaul(104) (Show Source): You can put this solution on YOUR website!
1-125b^3
it is in the form of a^3 - b^3
for which the factorisation is (a-b)*(a^+ab+b^2)
here the value of a = 1
value of b = 5b
so that
1-125b^3 = (1)^3 - (5b)^3 = (1-5b){1+(1*5b)+(5b)^2}
= (1-5b)(1+5b+25b^2) (Ans)

Answer by JimMarshall(82) (Show Source): You can put this solution on YOUR website!
1-125b^3
it is in the form of a^3 - b^3
for which the factorisation is (a-b)*(a^+ab+b^2)
here the value of a = 1
value of b = 5b
so that
1-125b^3 = (1)^3 - (5b)^3 = (1-5b){1+(1*5b)+(5b)^2}
= (1-5b)(1+5b+25b^2)
Ans
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