Which expersion shows a way to facter \( 63+81 ? \) \( \begin{array}{llll}7(9+12) & 7(9+11) & 9(7+9) & 9(8+7)\end{array} \)

To factor \( 63 + 81 \), we can observe that both numbers share common factors. The expression can be rewritten as \( 63 + 81 = 63 + 9 \times 9 \), which can be grouped. The correct option is \( 9(7 + 9) \), which simplifies to \( 9 \times 16 = 144 \), confirming that this expression indeed represents the same total as \( 63 + 81 \). In mathematics, factoring is like breaking down a number into its building blocks. In this case, finding expressions that combine and simplify can help visualize how different factors contribute to the overall sum. It’s a cool way to uncover hidden relationships between numbers! Since \( 9 \) is a common factor here, it shows that these numbers love to be grouped together!