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torisob [31]
3 years ago
13

Find the product of (x-7)^2 and explain how it demonstrates the closure property of multiplication

Mathematics
1 answer:
iogann1982 [59]3 years ago
4 0

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

Learn More

Polynomials :brainly.com/question/9601478

Keywords : product, closure property of multiplication,

#LearnwithBrainly

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what does the picture say?

Step-by-step explanation:

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3 years ago
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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B19%7D%20%20%3D%206" id="TexFormula1" title=" \frac{x}{19} = 6" alt=" \fra
Alex17521 [72]

[ Answer ]

\boxed{X \ = \ 114}

[ Explanation ]

\frac{x}{19} = 6

Multiply Both Sides By 19

\frac{x}{19} = 6 · 19

Simplify:

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Check Your Work:

\frac{114}{19}

Simplify:

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\boxed{[ \ Eclipsed \ ]}

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3 years ago
Please help me find BD
Tanzania [10]

9514 1404 393

Answer:

  14 units

Step-by-step explanation:

The angle bisector divides the sides proportionally, so you have ...

  (x+4)/8 = (2x+1)/12

  3(x +4) = 2(2x +1) . . . . . . multiply by 24

  3x +12 = 4x +2 . . . . . . . . eliminate parentheses

  10 = x . . . . . . . . . . . subtract (3x+2)

Then BD = x+4 = 10 +4.

The length of BD is 14 units.

_____

<em>Additional comment</em>

The "triangle" cannot exist, as the side lengths are shown as 8, 12, and 35. The long side is too long. Nice math; bad geometry.

8 0
2 years ago
Ebony walked at a rate of 3 1/2 miles per hour for 1 1/3 hours. how far did she walk.
Pachacha [2.7K]
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