Mathematics

12 February, 10:16

Expression 1

6 x 7 - 3² - 9 x 9 + 4³

Expression 2

5 + 4² + 6 - 2² - 1

Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a value of 19.

Explain in full sentences how you know that with your parentheses that Expression 2 is equal to 19.

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