theants
theants
03-11-2017
Mathematics
contestada
which of the fallowing is a factor? EXPLAIN:
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jimthompson5910
jimthompson5910
03-11-2017
Find two numbers that multiply to -28 (last term) and add to -3 (middle term)
Those two values are -7 and 4
-7 plus 4 = -3
-7 times 4 = -28
Since the numbers are -7 and 4, this means the given expression factors to (x-7)(x+4)
The two factors are x-7 and x+4
The factor x+4 isn't listed in the list of answer choices, so we can ignore it. The factor x-7 is listed as
choice B, so that is the only answer.
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