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OpenStudy (anonymous):
-18z^3 + ( -15z^3)
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OpenStudy (anonymous):
SIMPLIFY
OpenStudy (anonymous):
Subtract like you normally would since the exponents are the same. For example, -3x^2 + (-2x^2)= -5x^2
OpenStudy (anonymous):
m. i don't get it,
OpenStudy (anonymous):
What is -18+(-15)?
OpenStudy (anonymous):
When you are adding a negative it is the same as subtracting. So, what is -18-15?
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OpenStudy (anonymous):
-3?
OpenStudy (anonymous):
No, -18-15=-33, then since your question has z^3 in it, your answer is -33z^3
OpenStudy (anonymous):
Does that make sense? :)
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