Question

The numerical coefficient of xy in the given expression 9x -8xy + 4x - 10xy is

Answer 1

Step-by-step explanation:

$9x -8xy + 4x - 10xy \\ = 13x - 18xy$

Hope it will help,,,

Answer 2

SOLUTION

TO DETERMINE

The numerical coefficient of xy in the given expression

9x - 8xy + 4x - 10xy

CONCEPT TO BE IMPLEMENTED

Algebraic expressions :

A combination of constants and variables , connected by four fundamental arithmetical operations i.e addition , subtraction , multiplication and division is called an algebraic expressions

Terms :

Various parts of an algebraic expression , which are separated by + or – are called terms of the algebraic expression

Coefficients :

In a term of an algebraic expression the numerical factor of a term is called coefficients and any of the factors with the sign of the term is called coefficient of the product of the other factors

EVALUATION

Here the given expression is

9x - 8xy + 4x - 10xy

We simplify it as below

9x - 8xy + 4x - 10xy

= 13x - 18xy

In the above expression the term involving xy is - 18xy

Now the numerical coefficient of xy = - 18

FINAL ANSWER

Hence the required numerical coefficient of xy = - 18

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