Question

If f(x) = (x-6)(x +12), determine the x-intercepts of y = f(-3x).
Show your work.

Answer 1

x = -2, x = 4

Explanation:

(-3x-6)(-3x+12)

foil method:

9x² - 18x - 72

9(x² - 2x - 8) = 0

(x+2)(x-4) = 0

x = -2 and x = 4

Answer 2

Explanation is
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