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Q39: <span class="ql-formula" data-value="( 2 x + 8
Q178: <span class="ql-formula" data-value="\begin{array} { l } 9
Q199: <span class="ql-formula" data-value="\begin{array} { l } 6
Q215: <span class="ql-formula" data-value="\sum _ { i =
Q263: <span class="ql-formula" data-value="x ^ { 2 }
Q278: <span class="ql-formula" data-value="1.06 ^ { 3 }"><span
Q294: <span class="ql-formula" data-value="\left( \begin{array} { l }
Q299: A bag contains 8 red marbles,
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