isirios17 isirios17

13-10-2022
Mathematics

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Refer to Expression 1 and Expression 2.
Expression 1
6-7-3².9+43
r:
Expression 2
5+4+2+6-2-2-1
(a) What is the value of Expression 1?
(b) Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a
value of 19.

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