# The coefficient of xy in 3x²zy + 7xyz - 2z²x is

(a) 3z

(b) -2

(c) 7yz

(d) 7z

**Solution:**

Given, the expression is 3x²zy + 7xyz - 2z²x.

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 7xyz = 7z(xy)

Therefore, the coefficient of xy is 7z.

**✦ Try This: **The coefficient of xy in 5x²zy + 8xyz - 9z²x is

Given, the expression is 5x²zy + 8xyz - 9z²x.

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 8xyz = 8z(xy)

Therefore, the coefficient of xy is 8z.

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

**NCERT Exemplar Class 7 Maths Chapter 10 Sample Problem 2**

## The coefficient of xy in 3x²zy + 7xyz - 2z²x is (a) 3z (b) -2 (c) 7yz (d) 7z

**Summary:**

The coefficient of xy in 3x²zy + 7xyz - 2z²x is 7z.

**☛ Related Questions:**

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- An algebraic expression having one or more terms with non-negative integral exponents of the variabl . . . .
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