Question

xcube +y cube keemat xy=10and x+y=7​

Answer 1

Answer:

given x + y = 7

xy = 10

to find : x³ + y³

since,

x³ + y³ = ( x + y)³ - 3xy( x + y)

so,

x³ + y³ = 7³ - 3×10×7

= 343 - 210

= 133

the answer is 133.

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