Simplify: `(2a^2 - 12a + 18)/(3a^2 - 12)` `xx`  `(a^2 + a - 6)/(4a^2 - 36)` Keep (  ) around binomial factors.  Leave answer in factored form.

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To simplify,  factor the polynomials.



Then, cancel the common factors between numerators and denominators.



Hence, `(2a^2-12a+18)/(3a^2-12)xx(a^2+a-6)/(4a^2-36)=(a-3)/(6(a+2))` .

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