Question

Please answer it as fast as possible with solution ​

Answer 1

Step-by-step explanation:

R.H.S

L.H.S.,8×7×6=42×8=336

(n-5)(n-6)(n-7)=

$({n}^{2} - 5n - 6n + 30)(n - 7) \\ =( {n}^{2} - 11n + 30)(n - 7) \\ = {n}^{3} - 7 {n}^{2} - 11 {n }^{2} + 77n \\ + 30n - 210 \\ = {n}^{3} - 18 {n}^{2} + 107n - 210$

=>

NOW SOLVE FOR N

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