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How do I do this?!?
How do I solve this polynomial inequality?
(x – 4)(x + 2) > 0
2 Answers
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- steiner1745Lv 71 decade agoFavorite Answer
The product will be positive if both factors
are positive or both are negative.
They are both positive if x > 4
and both negative if x < -2
So the answer to your question is
x < -2 or x > 4.
- 1 decade ago
FOIL----first, outer, inner, last
(x^2 +2x -4x -8) >0
add like terms
(x^2 -2x -8) >0 <-----answer
hope this helps!!!!!!
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