How does this equal -12

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How does 8-5(13-3^2)
= -12? when i do i get 12 no matter how i do this i just cant get it to -12

Guest Jul 8, 2013

Guest · Answer 1 · 2013-07-08T08:25:21

Order of operations.
8-5(13-3^2)
= 8-5(13-9)
= 8-5(4)
= 8-20
= -12