Question

9(a-2b)^2-16(2a-3b)^2factorize​

Answer 1

Answer:

-55a^2-135b^2+78ab

Step-by-step explanation:

9(a-2b)^2-16(2a-3b)^2

=9(a^2-2ab+b^2)-16(4a^2-6ab+9b^2)

=9a^2-18ab+9b^2 -64a^2+96ab-144b^2

=-55a^2+78ab-135b^2

then just arrange the answer in order

=-55a^2-135b^2+78ab

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