Aligned Environment Fix Test

Test: Multiple Steps Alignment

LaTeX code:

\begin{aligned}
(a + b)^2 &= (a + b)(a + b) \\
          &= a^2 + ab + ba + b^2 \\
          &= a^2 + 2ab + b^2
\end{aligned}

Rendered (should have empty cells before = signs in rows 2 and 3):

Expected Structure

Each row should have:

• Row 1: Left cell: (a + b)^2, Right cell: = (a + b)(a + b)
• Row 2: Left cell: EMPTY, Right cell: = a^2 + ab + ba + b^2
• Row 3: Left cell: EMPTY, Right cell: = a^2 + 2ab + b^2

The equals signs should all line up vertically on the left side of the right column.