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Q7: <span class="ql-formula" data-value="6 x ^ { 2
Q49: <span class="ql-formula" data-value="64 x y ^ {
Q152: <span class="ql-formula" data-value="\mathrm { i } ^
Q172: <span class="ql-formula" data-value="36 x + 12 y
Q177: <span class="ql-formula" data-value="\frac { x ^ {
Q185: <span class="ql-formula" data-value="\frac { - 20 x
Q192: <span class="ql-formula" data-value="\frac { x ^ {
Q210: One conveyor belt can move 1000
Q268: <span class="ql-formula" data-value="x ^ { 2 }
Q340: <span class="ql-formula" data-value="\frac { \sqrt [ 4