Please solve this by using identity
(x/2 +3/4y)^2
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Answer:
5xyz2 – 3zy
(ii) 1 + x + x2
(iii) 4x2y2 – 4x2y2z2 + z2
(iv) 3 – pq + qr – rp
(v) 
(vi) 0.3 a – 0.6 ab + 0.5 b
Sol. (i) 5xyz2 – 3zy
In the expression 5xyz2 – 3zy, the terms are 5xyz2 and –3zy.
coefficient of xyz2 in the term 5xyz2 is 5.
Answered by
1
use
in the 3rd term 2 gets cancelled and add the 1st and 2nd terms.
add them and you get the answer.
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