Question

Find the following products by using suitable identities.

  i) (x2 + 4) (x2 ⎼ 4)          ii) (3x + 4y) (3x⎼ 8y)




plz give me the correct answer please​

Answer 1

Answer:

(x2 + 4) (x2-4)

using (x+a) (x+b)

=x2+(a+b)x+a×b

putting a=4,b=4

=x2+(4+4)x+4×4

=x2+8x+16

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