factorise 3a cube b minus 243 a b cube
Answers
Answered by
4
Answer:
a=9,b=1
Step-by-step explanation:
3a3b-243ab3=0
3a3b=243ab3
a2=81b2
(a/b)^2=9^2
a=9,b=1
Answered by
3
Answer:
3a3b - 243ab3
=3ab(a2-81b2)
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