Question

Evaluate the expression m + (3n - 5)2 when m = 6 and n = 4.

m+ (3n - 5)2 = ? A + (3 ?
-5)

Answer 1

55

Explanation:

6+(3*4-5)^(2)

=55

Answer 2

20

Explanation:

substitute first to get:

6 + (3·4 - 5)2

multiply 3 and 4 to get 12:

6 + (12 - 5)2

subtract 12 and 5 to get 7:

6 + 7(2)

multiply 7 and 2 to get 14

6 + 14 = 20