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2 September, 05:02

What are the x-intercepts of the quadratic function f (x) = x^2+6x-16

Question 3 options:

8 only

-8 only

-2 and 8

-8 and 2

+2
Answers (1)
  1. 2 September, 05:12
    0
    -8 and 2

    The expression is factorable and is equal to (x+8) (x-2). Using the zero product property, x=-8 because (-8) + 8 equals zero and x=2 because 2-2 equals zero.
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