Math, asked by taekookdestiny5, 2 months ago

Please solve this by using identity
(x/2 +3/4y)^2

Answers

Answered by niharikadevi129
2

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 Anonymous
1

(\frac{x}{2} +\frac{3}{4y})^{2}

use (a+b)^2 = a^2 + b^2 + 2ab

\frac{x^2}{4} +\frac{9}{16y^2} +2(\frac{x}{2} )(\frac{3}{4y} )

in the 3rd term 2 gets cancelled and add the 1st and 2nd terms.

\frac{16x^2y^2+36}{64y^2}+\frac{3x}{4y}

add them and you get the answer.

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