Expression 1
6 x 7 – 3^2 x 9 + 4^3 =
Expression 2
5 + 4 x 2 + 6 – 2 X 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.
Answer: