Question

Multiply each of the following monomials :
(i) 3xyz, 5x, 0 (ii) $\frac{6}{5}ab,\frac{5}{6}bc,\frac{12}{9}abc$

Answer 1

(i) We have,
(3xyz) × (5x) × 0 = (3×5×0) × (x × x × y × z) = 0 × $x^{2}yz$ = 0

(ii) We have,
$\left(\frac{6}{5}ab\right)\times \left(\frac{5}{6}bc\right)\times \left(\frac{12}{9}abc\right)$

$=(\frac{6}{5}\times \frac{5}{6}\times \frac{12}{9})\times (a\times a\times b\times b\times b\times c\times c)$$=\frac{12}{9}{a}^{(1+1)}{b}^{(1+1+)}{c}^{(1+1)}=\frac{4}{3}{a}^2{b}^3{c}^2$