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Nezavi [6.7K]
3 years ago
7

Question 21

Mathematics
1 answer:
RUDIKE [14]3 years ago
6 0

Answer:

y=-2x+1

Step-by-step explanation:

Perpendicular lines have slopes that are negative reciprocals of one another.  slope 1/2 perpendicular will be -2/1=-2

y-5=-2(x-(-2))

y-5=-2(x+2)

y-5=-2x-4

y=-2x-4+5

y=-2x+1

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Answer:

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Step-by-step explanation:

Given

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Factor the first/second and third/fourth term in the parenthesis

= 9y( x²(2x - 1) - 4y²(2x - 1)) ← factor out (2x - 1) from each term

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x² - 4y²

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18x³y - 9x²y + 72xy³ + 36y³

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