Question

Find the product of (x-7)^2 and explain how it demonstrates the closure property of multiplication
A. X^2-14x+49; is a polynomial
B. X^2-14x+49; may or may not be a polynomial
C. X^2-49; is a polynomial
D. X^2-49; may or may not be a polynomial

Answer 1

A. x²-14x+49; is a polynomial

Step-by-step explanation:

(x-7)² can be written as (x-7)(x-7)

Expanding the expression

x(x-7)-7(x-7)

x²-7x-7x+49

x²-14x+49 ⇒⇒A quadratic function, which is a polynomial of degree 2

This function demonstrates the closer property of multiplication in that the change in order of multiplication does not change the product. This is called commutative property.

(x-7)(x-7)

-7(x-7)+x(x-7)

-7x+49+x²-7x

x²-14x+49

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Polynomials :https://brainly.com/question/9601478

Keywords : product, closure property of multiplication,

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Answer 2

Answer:

A is correct

Step-by-step explanation:

I took the test and got it right