997(128+52-4(997)(20)
Evaluate
-79341260
Factor
-79341260
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997\left(180-4\times 997\times 20\right)
Add 128 and 52 to get 180.
997\left(180-3988\times 20\right)
Multiply 4 and 997 to get 3988.
997\left(180-79760\right)
Multiply 3988 and 20 to get 79760.
997\left(-79580\right)
Subtract 79760 from 180 to get -79580.
-79341260
Multiply 997 and -79580 to get -79341260.
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