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3 years ago

3x(x+5y)+2y(7x-y)+4(x^2+2y)

Mathematics

1 answer:

Helga [31]3 years ago

6 0

Answer:

7x^2 + 29xy -2y^2 + 8y

Step-by-step explanation:

3x(x+5y)+2y(7x-y)+4(x^2+2y)

Break all the brackets and you would hot:

= 3x*x + 3x*5y + 2y*7x - 2y*y + 4*x^2 + 4*2y

= 3x^2 + 15xy + 14xy -2y^2 + 4x^2 + 8y

= 3x^2 + 4x^2 +15xy + 14xy - 2y^2 + 8y

= 7x^2 + 29xy -2y^2 + 8y

Hope this help you :3

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n200080 [17]

Question:

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Answer:

See Explanation

Step-by-step explanation:

The question is incomplete as the values of radius and central angle are not given.

However, I'll answer the question using the attached figure.

From the attached figure, the radius is 3 unit and the central angle is 120 degrees

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umka2103 [35]

Answer:

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Step-by-step explanation:

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