1.

Write the following in the expanded form:(i) (a +2b + c)2(ii) (2a − 3b − c)2(iii) (−3x + y + z)2(iv) (m + 2n − 5p)2(v) (2 + x − 2y)2(vi) (a2 + b2 + c2)2(vii) (ab + bc + ca)2(viii) xy+yz+zx2(ix) abc+bca+cab2(x) (x+2y+4z)2(xi) (2x − y + z)2(xii) (−2x + 3y + 2z)2

Answer» Write the following in the expanded form:



(i) (a +2b + c)2



(ii) (2a − 3b − c)2



(iii) (−3x + y + z)2



(iv) (m + 2n − 5p)2



(v) (2 + x − 2y)2



(vi) (a2 + b2 + c2)2



(vii) (ab + bc + ca)2



(viii) xy+yz+zx2



(ix) abc+bca+cab2



(x) (x+2y+4z)2



(xi) (2x − y + z)2



(xii) (−2x + 3y + 2z)2


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