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Home > A2C > Chapter 11 > Lesson 11.3.4 > Problem 11-171

11-171.
  1. If f (x) = x2 + 7x, calculate the values described below. Homework Help ✎

    1. f (2)

    2. f (−3)

    3. f (i)

    4. f (−3.5 + 1.5i)

    5. Solve f (x) = 0

For parts (a)-(d), substitute the value for x and simplify.

x = −14.5

Factor x2 + 7x = 0.

x = 0 and x = −7