\int _ { 1 } ^ { 3 } x ^ { 2 } d x + \int _ { 0 } ^ { 1 } x ^ { 2 } d x + \frac { 1 } { 7 } \int _ { 0 } ^ { 3 } ( 7 x ^ { 2 } ) d x
Factor
2\times 3^{2}
Evaluate
18
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\frac{7\int _{1}^{3}x^{2}\mathrm{d}x+7\int _{0}^{1}x^{2}\mathrm{d}x+\int _{0}^{3}7x^{2}\mathrm{d}x}{7}
Factor out \frac{1}{7}.
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