d Question 4: Factorize 3x-243×3 | Job Exam Rare Mathematics (JEMrare) - Solved MCQs

Question 4: Factorize 3x-243×3

Question 4: Factorize 3x-243×3

a square minus b square type expressions


The given expression is as under’

3x-243 x^{3}

We see that 3x is common between the two terms- taking it out;

=3x(1-81 x^{3})

=3x[(1)^{2}-(9 x)^{2})]

The terms within brackets depict  a^{2}-b^{2} =(a-b)(a+b) form, so;




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