SOLUTION: How would you simplify these equations? 4(2-3(4+5(2-5)+5)) 1/2(4)(2+7) (-3) to the second power

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Question 467250: How would you simplify these equations?
4(2-3(4+5(2-5)+5))
1/2(4)(2+7)
(-3) to the second power
Answer by Big Poop(157) About Me  (Show Source):