A polynomial is factored using algebra tiles

Mathematics

2 answers:

dezoksy [38]3 years ago

8 0

Answer:

A) $x^2-2x-8$

Step-by-step explanation:

The polynomial factored is equal to the area of the algebra tiles. This means the quadratic is

$x^2 + x+ x -x -x -x -x-1-1-1-1-1-1-1-1\\x^2-2x-8$

After writing out each tile as a term, combine like terms to simplify. This ia the quadratic.

$x^2-2x-8$

Ludmilka [50]3 years ago

3 0

Answer: x2-2x-8

Step-by-step explanation:

On edgunity it is

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A picture frame is shaped like a rectangle whose perimeter is 196 cm. The length is 6 times long as the width

lbvjy [14]

L=length W=width
perimeter=2Lx2W
196=2L+2W

Length can be written as 6W because it is 6 times the width. We then substitute this in so all the terms are the same

196=2(6W)+2W
196=12W+2W
196=14W
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3 0

3 years ago

A math class is having a discussion on how to determine if the expressions 4 x minus x + 5 and 8 minus 3 x minus 3 are equivalen

Brut [27]

Answer:

Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.

Step-by-step explanation:

<u>Given expressions</u>

4x - x + 5 = 3x + 5
8 - 3x - 3 = -3x + 5

Compared, we see the expressions are different as 3x and -3x have different coefficient

<u>Answer options</u>

Both expressions should be evaluated with one value. If the final values of the expressions are both positive, then the two expressions must be equivalent.

Incorrect. Positive outcome doesn't mean equivalent

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Both expressions should be evaluated with one value. If the final values of the expressions are the same, then the two expressions must be equivalent.

Incorrect. There are 2 values- variable and constant

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Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are positive, then the two expressions must be equivalent.

Incorrect. Positive outcome doesn't mean equivalent.

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Both expressions should be evaluated with two different values. If for each substituted value, the final values of the expressions are the same, then the two expressions must be equivalent.