Answer:
(x + 1)(x + 9) = 0
Step-by-step explanation:
After you subtract 16 from both sides, you get ...
x² +10x +9 = 0
When you factor this equation, it becomes ...
(x +1)(x +9) = 0
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For the zero product property to be of any use, the form of the equation must be a product that equals zero.
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<em>Comment on the other answer choice</em>
(x -1)(x -9) = 0 = x² -10x +9 . . . . . the x term is different from that in the given equation. It has the wrong sign.
