3 years ago

The expression below is the factorization of what trinomial?

1 answer:

6 0

The answer is: [A]: 45x² + 81x + 36 .
_________________________

Explanation: Use "FOIL" technique: (First, Outer, Inner, and Last Terms);
then, combine the "like terms", to simplify.
__________________________________________

(5x+4)(9x+9) = 45x² + 45x + 36x + 35 = 45x² + 81x + 36 .
(which is answer choice: "A".).
________________________________________________

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