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Lady_Fox [76]
3 years ago
10

Three students were given the expression shown and were asked to take a common factor out of two of the terms.

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
4 0

Answer:

Step-by-step explanation:

Expression given → 4 - 9x + 21

Chang's expression → 4 - 3(3x + 7)

Chang's expression is incorrect because the correct expression is [4 - 3(3x - 7)]

Benjamin's expression → 4 + 3(3x + 7)

Benjamin's expression is incorrect because the correct expression is [4 - 3(3x - 7)]

Habib's expression → 4 + 12x

Habib's expression is incorrect because the correct expression is [4 - 3(3x - 7)]

Correct expression → [4 - 3(3x - 7)]

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Answer:

The expression of the area of rectangle ABCD as simplified polynomial will  be:

A=16x^2-8x

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Step-by-step explanation:

As we know that the area of a rectangle can be obtained by multiplying the length by the width.

i.e.

A=l\times w

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The width of a rectangle = w = 2x

so the expression of the area of rectangle ABCD as simplified polynomial will  be:

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A=\left[\left(x+5\right)\:+\:\left(3x\right)\:+\:\left(4x-9\right)\right]\:\times \left[2x\right]

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Therefore, the expression of the area of rectangle ABCD as simplified polynomial will  be:

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Answer:

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Step-by-step explanation:

2/5 x 5/6

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