Question 4 Expand each of the following, using suitable identities: (i) (x+2y+4z)2 (ii) (2x−y+z)2 (iii) (−2x+3y+2z)2 (iv) (3a−7b−c)2 (v) (−2x+5y−3z)2 (vi) [14a−12b+1]2

Question 4 Expand each of the following, using suitable identities: (i

1.	Question 4 Expand each of the following, using suitable identities: (i) (x+2y+4z)2 (ii) (2x−y+z)2 (iii) (−2x+3y+2z)2 (iv) (3a−7b−c)2 (v) (−2x+5y−3z)2 (vi) [14a−12b+1]2
Answer» Question 4 Expand each of the following, using suitable identities: (i) $(x + 2 y + 4 z)^{2}$ (ii) $(2 x - y + z)^{2}$ (iii) $(- 2 x + 3 y + 2 z)^{2}$ (iv) $(3 a - 7 b - c)^{2}$ (v) $(- 2 x + 5 y - 3 z)^{2}$ (vi) ${[\frac{1}{4} a - \frac{1}{2} b + 1]}^{2}$