hadleymaynard81 hadleymaynard81

10-10-2020
Mathematics

contestada

Check all that apply.
x2 - 4 = 0
A. X = 4
B. X = -2
C. x = 1
D. X = -4
E. X = 2
F. x = -1

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GeorgePP GeorgePP

10-10-2020

This is the difference of squares rule. This is essentially the same exact thing as (x-2)(x+2). Apply FOIL and check if you feel the need. We can see the zeros the function are at 2 and -2

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