Question

Coefficient of x in -9 x y2z is
a) 9yz b) -9yz c) 9y2z d) -9y2z
please say the right answer

Answer 1

Given:

The expression is

$-9xy^2z$

To find:

The coefficient of x in the given expression.

Solution:

Coefficient of a variable is the product of a number and other variables multiplying the variable in an algebraic expression.

In the given expression the number and variables other than x are -9, y² and z.

So, coefficient of x is

$-9\times y^2\times z=-9y^2z$

Therefore, the correct option is (d).