-2)^3 - (6)(-5) - square root of 49 I keep getting -29 and apparently the answer is 15. What am I doing wrong?

Question

-2)^3 - (6)(-5) - square root of 49   I keep getting -29 and apparently the answer is 15. What am I doing wrong?

directrix · Answer

(-2)^3 - (6)(-5) - square root of 49 = 
-8 + 30 - 7 = 30 - 15 = 15.
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Please post your work. Thanks.

anonymous · Answer

Okay so -8 + 30 is 22 - 7 is 15. Ugh I don't know why I kept getting -22. I ALWAYS mix up my signs and I have a test tomorrow!!

directrix · Answer

@annaf1018 --> Practice on this problem - same instructions as above.

4 - (-2)^3 - (5)(-1)^3 = ?

Test your signs here also:
(-1)^2
-1^2
-(-1)^2