(4x+9) (4x+12) use suitable identity
Answers
Answered by
7
Answer:
4x+9+4x+12
4x+4x+9+12
8x+21
Answered by
2
Answer:
(4x+9) (4x+12)
=( 4x)^2 +(9+12) (4x)+9*12
=16x^2+84x+108
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