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trapecia [35]
3 years ago
15

10xy(4xy^3-7xy+9y^2)

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
3 0

Answer:

40x^{2} y^{4} -70x^{2} y^{2} +90xy^{3}

Step-by-step explanation:

10xy(4xy^{3} -7xy+9y^2)  

1. 10xy · 4xy^3 = 40x^2y^4

2. 10xy · -7xy = -70x^{2} y^{2}

3. 10xy · 9y^2 = 90xy^3

Final step: add up all of those values together to make an equation!

Answer:  40x^2y^4+ -70x^2y^2+ 90xy^3

Final Answer: 40x^2y^4-70x^2y^2+90xy^3

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3 years ago
Suppose we want to choose colors, without replacement, from the colors red, blue, green, and purple.
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<h3>How to determine the number of ways?</h3>

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