Posted by Gertrude Sanders on Wednesday, November 5, 2008 at 11:30am.
The first two are OK. The third is not. The fourth has the wrong sign.
"Multiply": ( - 3 )³ - ( - 8) ( -2) =
The superscript 3 is an exponent.
( - 3 )³ = (-3)(-3)(-3) = -27
Subtract 16 from that.
Why do you start each operation with the word "multiply"? There are also other operaions involved (adding, subtracting and taking exponents)
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