Question

If 2m−3n =9 and mn=4, evaluate 8m³−27n³​

Answer 1

(3m−2n)(2m−3n)

at [m=1] & [n=−1]

now

=[3×1−2(−1)][2×−3(−1)]

[3+2][2+3]

5×5

=25

Answer 2

Step-by-step explanation:

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