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Home > AC > Chapter 7 > Lesson 7.3.3 > Problem 7-109

7-109.
  1. Evaluate the expressions below for the given values. Homework Help ✎

    1. −2x2 − 3x + 1 for x = −3

    2. 8− (3x − 2)2 for x = −2

    3. -3/k+2 for k = −3

    4. 15m/n+1m2 + n for m = 1, n = 2

Substitute the given value in for the variable and then follow the order of operations to evaluate.

−2(−3)² − 3(−3) + 1
−2(9) − (−9) + 1
−18 +10
−8

Follow the steps shown in part (a) to solve part (b).

−56

Use the same strategy as part (a) to solve part (c).

See the method used in part (a) for help solving part (d). Remember to substitute for both variables.