To simplify the expression \( x675x453 \), we can rewrite it as \( x \cdot 675 \cdot x \cdot 453 \).
Using properties of multiplication, we can rearrange and group terms:
\[ x \cdot x \cdot 675 \cdot 453 = x^2 \cdot (675 \cdot 453) \]
Next, we calculate \( 675 \cdot 453 \).
Performing the multiplication:
\[ 675 \times 453 = 305775 \]
Now, we can combine everything to get the final simplified expression:
\[ x^2 \cdot 305775 \]
Thus, the simplified form of \( x675x453 \) is:
\[ x^2 \cdot 305775 \]