Question

Subtract $-12m^{2}n$ from the sum of $5m^{2}n$and$-2m^{2}n$.

Answer 1

Solving the given statement

According to the statement,

First, we find the sum of $5m^{2}nand\left(-2m^{2}n\right)$

$$\begin{gathered} 5m^{2}n+\left(-2m^{2}n\right)=5m^{2}n-2m^{2}n \\ =3m^{2}n \end{gathered}$$

Now, subtracting $-12m^{2}n$ from the sum , we get

$$\begin{gathered} 3m^{2}n-\left(-12m^{2}n\right)=3m^{2}n+12m^{2}n \\ =15m^{2}n \end{gathered}$$
Hence, final answer is $15m^{2}n$.