(a)Add: p(p−q),q(q−r) and r(r−p)(b)Add: 2x(z−x−y) an

1.	(a)Add: p(p−q),q(q−r) and r(r−p)(b)Add: 2x(z−x−y) and 2y(z−y−x)(c)Subtract: 3l(l−4m+5n) from 4l(10n−3m+2l)(d)Subtract: 3a(a+b+c)−2b(a−b+c) from 4c(−a+b+c)
Answer» (a)Add: $p (p - q), q (q - r)$ and $r (r - p)$ (b)Add: $2 x (z - x - y)$ and $2 y (z - y - x)$ (c)Subtract: $3 l (l - 4 m + 5 n)$ from $4 l (10 n - 3 m + 2 l)$ (d)Subtract: $3 a (a + b + c) - 2 b (a - b + c)$ from $4 c (- a + b + c)$

(a)Add: p(p−q),q(q−r) and r(r−p)(b)Add: 2x(z−x−y) and 2y(z−y−x)(c)Subtract: 3l(l−4m+5n) from 4l(10n−3m+2l)(d)Subtract: 3a(a+b+c)−2b(a−b+c) from 4c(−a+b+c)

Answer»

(a)Add: $p (p - q), q (q - r)$ and $r (r - p)$

(b)Add: $2 x (z - x - y)$ and $2 y (z - y - x)$

(c)Subtract: $3 l (l - 4 m + 5 n)$ from $4 l (10 n - 3 m + 2 l)$

(d)Subtract: $3 a (a + b + c) - 2 b (a - b + c)$ from $4 c (- a + b + c)$