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OpenStudy (anonymous):
Given b = 4 and c = -5, evaluate b² - c².
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OpenStudy (anonymous):
4² -(-5)² 4² =16 -(-5)² =-25 16-(-25)=41
OpenStudy (anonymous):
4^2-(-5^2) when you subtract a negative ou add a positive 4^2+5^2 square both numbers 16+25 add 41
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