Evaluate $\sum _ { j = 1 } ^ { 20 } \left( j ^ { 3 } - 4 j ^ { 2 } \right)$ using the summation formulas and properties.
A)44,100
B)42,500
C)44,096
D)44,020
E)32,620

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The Answer of Evaluate $\sum _ { j = 1 } ^ { 20 } \left( j ^ { 3 } - 4 j ^ { 2 } \right)$ using the summation formulas and properties.
A)44,100
B)42,500
C)44,096
D)44,020
E)32,620

Evaluate ∑j=120(j3−4j2)\sum _ { j = 1 } ^ { 20 } \left( j ^ { 3 } - 4 j ^ { 2 } \right)∑j=120​(j3−4j2)

Evaluate $\sum _ { j = 1 } ^ { 20 } \left( j ^ { 3 } - 4 j ^ { 2 } \right)$