-3(7+8-(15-7)+ { 4 }^{ 2 }
Evaluate
-69
Factor
-69
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-3\left(15-\left(15-7\right)+4^{2}\right)
Add 7 and 8 to get 15.
-3\left(15-8+4^{2}\right)
Subtract 7 from 15 to get 8.
-3\left(7+4^{2}\right)
Subtract 8 from 15 to get 7.
-3\left(7+16\right)
Calculate 4 to the power of 2 and get 16.
-3\times 23
Add 7 and 16 to get 23.
-69
Multiply -3 and 23 to get -69.
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