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lions [1.4K]
3 years ago
8

88 POINTS!!!!! Multiply: 1. (y−4)2 2. 5(y+4)2 3. (y+4)2 4. 5(y−4)2

Mathematics
2 answers:
navik [9.2K]3 years ago
7 0

Answer:

Thus # 2 is correct (5 (y + 4))/2

Step-by-step explanation:

Simplify the following:

(5 y (y^2 - 16))/(2 y (y - 4))

(5 y (y^2 - 16))/(2 y (y - 4)) = y/y×(5 (y^2 - 16))/(2 (y - 4)) = (5 (y^2 - 16))/(2 (y - 4)):

(5 (y^2 - 16))/(2 (y - 4))

y^2 - 16 = y^2 - 4^2:

(5 (y^2 - 4^2))/(2 (y - 4))

Factor the difference of two squares. y^2 - 4^2 = (y - 4) (y + 4):

(5 (y - 4) (y + 4))/(2 (y - 4))

Cancel terms. (5 (y - 4) (y + 4))/(2 (y - 4)) = (5 (y + 4))/2:

Answer:  (5 (y + 4))/2

omeli [17]3 years ago
7 0

Use the distribution method.

1) 2y - 8

2) 10y + 40

3) 2y + 8

4) 10y - 40

The one in the picture simplified is 5/2y + 10

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1 year ago
7.
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