Factorise15 a^3 b - 35ab^3
2 answers:
Answer:
15 a^3 b - 35ab^3
taking common
5ab(3a²-7b²)
Answer:

Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>
<h3>tips and formulas:</h3>
- therefore are many ways to factor. In this question to factor we just need to figure out GCF of the following expression
- factor out the GCF
<h3>given:</h3>
<h3>let's solve:</h3>
- rewrite 15a³b as 3×5×a×a×a×b
- rewrite -35ab³ as -1×7×5×a×b×b×b
- therefore the GCF of the expression is 5ab
- let's factor out 5ab:5ab(3a²-7b²)
and
we are done
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