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Question

Write the coefficient of x2 in the given expression: y+y2x+y3x2+y4x3.


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Solution

Coefficient of terms in the polynomials:

The coefficient of polynomials is the number multiplied to the variable.

In the expression, ax3+bx2+cx+d,

a is the coefficient of x3.

b is the coefficient of x2.

c is the coefficient of x.

d is the coefficient of x0.

The given expression is, y+y2x+y3x2+y4x3

Here, the coefficient of x2is y3.

Hence, the coefficient of x2is y3.


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