david167
david167 david167
  • 24-08-2018
  • Mathematics
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evaluate 7^2 + (4x5) - 2^3

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brooklyns357 brooklyns357
  • 24-08-2018

Remember PEMDAS! Do the parenthesis first so 4x5 is 20. So now write it out as 7^2+20-2^3 now next is exponents. 7x7 is 49 and -2x-2x-2 is -8. now write it as 49+20+-8. Now solve from left to right. 49+20 is 69 now subtract 8 which is 61. 61 is your answer! I hope this worked!

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