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OpenStudy (anonymous):
Evaluate this expression. P = 10, R = -4, T = 5 P 2 - R 2 =
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OpenStudy (anonymous):
those 2's are suppose to be little like 10 to the second power
OpenStudy (anonymous):
Then you put ^2 for them
OpenStudy (anonymous):
plug in the numbers
OpenStudy (anonymous):
10(2)=20 -(-2)(2)=-4 20-4=16 :D
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