3 years ago

Factor by grouping.......

Mathematics

1 answer:

Gekata [30.6K]3 years ago

7 0

Answer:

A. (7n-1) (8n-1)

Step-by-step explanation:

56n^2 -8n-7n+1

56n^2 -8n -7n+1

Factor out 8n from the first group and -1 from the second group

8n (7n-1) -1(7n-1)

Factor out the (7n-1)

(7n-1) (8n-1)

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1.)Painting Jane is painting one wall of her living room. The wall is rectangular, 13 feet wide by 9 feet high. What is the area

antiseptic1488 [7]

Answer:

1. $117 ft^{2}$

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Step-by-step explanation:

First use $A = w*l$

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It doesn't have to be $A = w*l$ , it could be $A = l*w$ . It will be the same answer.

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2. $3 ft * 18 ft = 54 ft^{2}$

3. $42 ft * 34 ft = 1,428 ft^{2}$

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