Question

(x + 3) (x – 3) (x + 4) (x - 4)​

Answer 1

Answer:

refer to the above picture.

hope it helps u...

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Answer 2

(x+3)(x-3)(x+4)(x-4)

=(x²-9)(x²-16)

=x²(x²-16)-9(x²-16)

=x^4 -16x² -9x² +144

=x^4 -25x² +144