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2-90.
  1. Evaluate the expressions below for the given values. Homework Help ✎

    1. 6m + 2n2 for m = 7 and n = 3

    2. 5x/3-2 for x = −18

    3. (6x)2-x/5 for x = 10

    4. (k − 3)(k + 2) for k = 1

Substitute the given values for the variables m and n.

6(7) + 2(32)

Simplify the expression.
42 + 18 = 60

60

Substitute −18 for x in the expression. Then simplify.

After substituting 10 for x, the expression becomes:

Simplify. Be sure to multiply the 6 and 10 before squaring!

Replace each k with 1, and then simplify the expression.

−6