Use the identity attached above to find the product of
I. (4x+5) (4x+1)
ii. (4x-5) (4x-1)
iii. (4x+5) (4x-1)
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Answer:
1)(4x+5) (4x+1) = 4x*sq+4x(5+1) +5x1
=16x*sq+4x(6) +5
=16x*sq+24x+5........
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