Factorise 3a^2b^3-27a^4b
Answers
Answered by
62
Step-by-step explanation:
3a²b³ - 27a⁴b
=3a²b(b² - 9a²)
=3a²b[(b)² - (3a)²]
=3a²b[(b + 3a)(b - 3a)]. [(x² - y²) = (x + y)(x - y)]
=3a²b(b + 3a)(b - 3a)
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Answered by
11
Answer:
3a^2b^3-27a^4b
3a^2b(b^2-9a^2)
3a^2b{(b)^2-(3a)^2}
3a^2b(b+3a) (b-3a)
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