Question 877436
How do you solve  the basic function (X - 9) (X + 7) = 0
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Not sure what "basic function" means, but
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If the product is zero, one of the terms must be zero.  No other combination of factors = 0.
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Either x-9 = 0 --> x = 9
or,
x+7 = 0 --> x = -7