Math
posted by Alex .
(x+4)(x9)=0
I need help because I have tried all the answers as this a multiple choice question.
a)
(x+4)(x9)
(4+4)(99)
(8)(18)
144
b)
(x+4)(x9)
(4+4)(99)
(8)(0)
0
c)
(x+4)(x9)
(4+4)(99)
(8)(0)
0
d)
(x+4)(x9)
(4+4)(99)
(0)(18)
0

The whole setup is bogus
I'd go with (c), since it correctly notes that the solutions are 4 and 9.
But 4+4 is (0), not (8)
If this is a proposed way to solve for zeroes, it's really stupid. x cannot be both 4 and 9 at the same time.
Run far, run fast from this course!!!
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