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Question

Which among the following correctly represents a polynomial expression and polynomial equation in the variable x?

A
Polynomial Expression =10+9m
Polynomial Equation:
7+8m=15
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B
Polynomial Expression =15+16x
Polynomial Equation:
8+9y=7
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C
Polynomial Expression =2x+3
Polynomial Equation:
4x+9=36
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D
Polynomial Expression =5x+1
Polynomial Equation:
9p+3=17
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Solution

The correct option is C Polynomial Expression =2x+3
Polynomial Equation:
4x+9=36
Expression:–––––––––––––
An expression is a number, a variable, or a combination of numbers and variables and operation symbols.
For example, 2x+3, xy2+5x etc.

Equation:–––––––––––
An equation is made up of two expressions connected by an equal sign.
For example, 2x2+7x=5x+2, x2=4 etc.

In option (a.), we have:
Polynomial Expression =10+9m
Polynomial Equation:
7+8m=15

It contains a polynomial expression in m and a polynomial equation in m.

In option (b.), we have:
Polynomial Expression =15+16x
Polynomial Equation:
8+9y=7

It contains a polynomial expression in x and a polynomial equation in y.

In option (c.), we have:
Polynomial Expression =2x+3
Polynomial Equation:
4x+9=36

It contains a polynomial expression in x and a polynomial equation in x.

In option (d.), we have:
Polynomial Expression =5x+1
Polynomial Equation:
9p+3=17

It contains a polynomial expression in x and a polynomial equation in p.

Therefore, option (c.) is the correct answer as it contains both the polynomial expression and the polynomial equation in the variable x.

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