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Q19: <span class="ql-formula" data-value="\begin{array} { l } -
Q50: <span class="ql-formula" data-value="\frac { x ^ {
Q85: <span class="ql-formula" data-value="\frac { 9 x ^
Q126: <span class="ql-formula" data-value="\frac { \frac { 5
Q148: <span class="ql-formula" data-value="\frac { \frac { 7
Q230: <span class="ql-formula" data-value="\left( 4 x ^ {
Q235: <span class="ql-formula" data-value="( c - x )
Q274: <span class="ql-formula" data-value="3 x ^ { 2
Q277: <span class="ql-formula" data-value="\left( x ^ { -
Q282: <span class="ql-formula" data-value="6 ( y - 2