# Question #3b0bd

Jan 26, 2018

Let's just assume there is no plus sign there as it seems like a mistake...

Answer $= 12 {x}^{4}$

#### Explanation:

Here we just really need to use the standard index rule

where ${a}^{m} \cdot {a}^{n} = {a}^{m + n}$

Assuming there is no $+$ as it looks like a mistake we get:

$4 {x}^{2} \cdot 3 {x}^{2}$

To do this, we must first multiply the coefficients

$\therefore 4 \cdot 3 = 12$

Next up is the powers. Using the previous index law mentioned:

${x}^{2} \cdot {x}^{2} = {x}^{4}$

Treating the terms together we $\therefore$ get

$3 {x}^{2} \cdot 4 {x}^{2} = 12 {x}^{4}$