if m + n = 9 and mn = 26 then the value of m^3 + n^3 =
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1
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Answered by
1
Answer:
27
Step-by-step explanation:
(m+n)³ = m³+n³+3mn+(m+n)
or, (9)³ = m³+n³ + 3(26)(9)
or, 729 = m³+n³+702
or, m³+n³ = 729-702
or, m³+n³ = 27
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