Coefficient of x in - 9xy²z is
(a) 9yz
(b) -9yz
(c) 9y²z
(d) -9y²z

Solution:

Given, the expression is - 9xy²z.

We have to find the coefficient of x in the given expression.

Coefficient is the numerical factor in a term.

Sometimes, any factor in a term is called the coefficient of the remaining part of the term.

From the expression,

We observe that - 9xy²z = - 9y²z(x)

Therefore, the coefficient of x is - 9y²z.

✦ Try This: The coefficient of xy in x²zy + 9xyz - z²x is

Given, the expression is x²zy + 9xyz - z²x.

We have to find the coefficient of xy in the given expression.

Coefficient is the numerical factor in a term.

Sometimes, any factor in a term is called the coefficient of the remaining part of the term.

From the expression,

We observe that 9xyz = 9z(xy)

Therefore, the coefficient of xy is 9z.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12

NCERT Exemplar Class 7 Maths Chapter 10 Problem 5

Coefficient of x in -9xy²z is (a) 9yz (b) -9yz (c) 9y²z (d) -9y²z

Summary:

Coefficient of x in -9xy²z is -9y²z.

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