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Anvisha [2.4K]
3 years ago
14

Expand and simplify 9 (x-y)^2-9(x+y)(x-y)

Mathematics
1 answer:
yuradex [85]3 years ago
5 0

To simplify the problem it would be: -18xy+18y^2

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Step by step explanation:

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2x - 4y + 7x - 87<br> Helppp
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Answer:

9x-4y-87

Step-by-step explanation:

2x-4y+7x-87

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8 0
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Please help will mark brainliest
Wewaii [24]
Since this is a triangle all the angles within the triangle add up to 180 degrees so....
82+(9x+2)+(7x)=180
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3 years ago
What is the slope of the line that goes through (-5,5) and (5,-7)
sladkih [1.3K]

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m = y₂ - y₁ / x₂ - x₁

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3 years ago
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fgiga [73]

Answer: y= - 2/3x+6

Step-by-step explanation:

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y=mx+b

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So after you plug in the values, solve for b ("b" is the y intercept):

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