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OpenStudy (anonymous):
-10-x(15+3x^2) for =-1
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OpenStudy (anonymous):
8
OpenStudy (anonymous):
For x=-1 right
OpenStudy (anonymous):
yep
OpenStudy (anonymous):
how did you get 8
OpenStudy (anonymous):
-10 - (-1)(15+3(-1)^2) -10 + (15+3) =8 because -1^2=1 - (-1)=1
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OpenStudy (anonymous):
(-1)^2 sorry the brackets are important
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