S.chand class 6 Mathematics Chapter 14 Exercise 14C

 Exercise 14C

Question 1

1. Multiply:

(i) $2 x$ by $3 y$

(ii) $-a$ by $2 b$

(iii) $-2 m$ by $-3 n$

(iv) $-y^{2}$ by $-1$

(v) $5 a^{3} b$ by $3 a b^{2}$

(vi) $5 y^{2}$ by $3 y^{5}$

(vii) $-5 x^{4}$ by $18 x^{6}$

(viii) $\left(-5 m^{2} n p\right)$ by $\left(-4 m n^{2} p\right)$

Question 2

2. Find the product.

(i) $7(x+4)$

(ii) $5(2 x-4)$

(iii) $-4(-m-5)$

(iv) $5(3 p-2 q)$

Question 3

Simplify: $x(y-z)+y(z-x)+z(x-y)$