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VERY IMPORTANT QUESTION I WILL GIVE 50 POINTS TO WHOEVER ANSWERS THIS QUESTION

  1. Refer to Expression 1 and Expression 2.

Expression 1

6_7 - 3^2 _ 9+ 4^3


Expression 2

5+4_2+6_2_2-1

AWhat is the value of Expression 1?
BInsert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a value of 19.