If 2x+3y=13 and xy=6 find the value of 27y^3+8x^3
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Answered by
1
Answer:
Hello mate
Step-by-step explanation:
Hence the value of 8x3+27y3 8 x 3 + 27 y 3 is 793.
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Answered by
1
Answer:
793
Step-by-step explanation:
(2x +3y)³ = (13)³ ( ∵ 2x + 3y = 13)
8x³ + 27y³ + 3 (2x) (3y) ( 2x + 3y)= 2197
8x³ + 27y³ + 18 (xy) (13) = 2197
8x³ + 27y³ + (18) (6) (13) =2197
∴8x³ + 27³ = 2197 - 1404
= 793
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