Question

What is the simplified form of the following expression? 10yz/ -2z
A) -5yz
B) -5y
C) -5yz^2
D) 5y

Answer 1

-5Y , as Z/Z=1 , 10/-2 =-5

Answer 2

Answer:

B) -5y

Step-by-step explanation:

Given expression,

$\frac{10yz}{-2z}$

$=\frac{-5yz}{z}$

$=-5yzz^{-1}$ $(\because \frac{1}{a^m}=a^{-m})$

$=-5yz^{1-1}$  $(\because a^m.a^n=a^{m+n})$

$=-5yz^0$

$=-5y$

Since, further simplification is not possible.

Hence, option 'B' is correct.