Expand $(11 x+18)(11 x-18)$.
(A) To expand the expression $(11 x+18)(11 x-18)$,we use the algebraic identity $(a+b)(a-b) = a^{2}-b^{2}$.
Here,$a = 11 x$ and $b = 18$.
Applying the identity:
$(11 x)^{2} - (18)^{2}$
$= 121 x^{2} - 324$.
Here,$a = 11 x$ and $b = 18$.
Applying the identity:
$(11 x)^{2} - (18)^{2}$
$= 121 x^{2} - 324$.
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