Question

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9. If 9x2 + 25y2 = 181 and xy = -6, find the value of 3x + 5y​

Answer 1

Answer:

-48

Step-by-step explanation:

3x + 5y

xy = -6 ( given )

so, 3 × -6 + 5 × -6

-18 + (-30)

-18 - 30 = -48

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