If $m = - 2$ and $n = 2$ ; Find the value of:
(iv) $2 n^{3} - 3 m$

Open in App

Solution

Given that : $m = - 2$ and $n = 2$
Considering $2 n^{3} - 3 m$
Substituting the values of $m$ and $n$ in the above expression , we have :
$2 n^{3} - 3 m = 2^{3} - 3 (- 2)$
$= 2 (8) + 3 (2) = 16 + 6 = 22$
Hence, the value of $2 n^{3} - 3 m$ is $22$ .

Suggest Corrections

Similar questions

If $\frac{m + n}{m + 3 n} = \frac{2}{3}$ , find $\frac{2 n^{2}}{3 m^{+} m n}$

-

3 m^{2} - 12 m n + 4 n^{2}

m = 2

3 m - 2

x : (m^{2} - 2 n) = Y : (m^{2} + 2 n)

3 m = 5 x = y = 15

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program