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2-90.

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