Question

Factorization of 12 x² - 27 =​

Answer 1

In factoring - always look for a common factor first.

After taking out a common factor, the number of terms in the expressions is a huge clue as to what type of factorising it might be:

4 or more terms ⇒grouping

3 terms ⇒ quadratic trinomial

2 terms ⇒difference of two terms

12x^2−27=3(4x^2−9)

=3(2x+3)(2x−3)

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Answer 2

Answer:

answer for the given problem is given